diff --git a/.github/workflows/tests.yaml b/.github/workflows/tests.yaml
index 84568ff..50f7753 100644
--- a/.github/workflows/tests.yaml
+++ b/.github/workflows/tests.yaml
@@ -5,7 +5,7 @@ jobs:
         runs-on: ubuntu-22.04
         strategy:
             matrix:
-                php-versions: ['7.1', '7.2', '7.3', '7.4', '8.0', '8.1']
+                php-versions: ['8.1', '8.2']
         steps:
             - name: Checkout
               uses: actions/checkout@v3
diff --git a/composer.json b/composer.json
index 99a10ba..f813bc4 100644
--- a/composer.json
+++ b/composer.json
@@ -17,7 +17,7 @@
         }
     ],
     "require": {
-        "php": "~7.1|^8.0",
+        "php": "^8.1",
         "ext-json": "*",
         "guzzlehttp/guzzle": "^6.3|^7.0"
     },
@@ -46,7 +46,7 @@
     },
     "extra": {
         "branch-alias": {
-            "dev-master": "8.0-dev"
+            "dev-master": "10.0-dev"
         }
     },
     "config": {
diff --git a/src/Client.php b/src/Client.php
index 92fd31d..eb0582b 100644
--- a/src/Client.php
+++ b/src/Client.php
@@ -39,7 +39,7 @@ public function getCommissions(array $commissionQueries): array
      * @param string $ean The EAN number associated with this product.
      * @param float $unitPrice The price of the product with a period as a decimal separator. The price should always
      * have two decimals precision.
-     * @param string|null $condition The condition of the offer.
+     * @param Enum\GetCommissionCondition|null $condition The condition of the offer.
      * @return Model\Commission|null
      * @throws Exception\ConnectException when an error occurred in the HTTP connection.
      * @throws Exception\ResponseException when an unexpected response was received.
@@ -47,7 +47,7 @@ public function getCommissions(array $commissionQueries): array
      * @throws Exception\RateLimitException when the throttling limit has been reached for the API user.
      * @throws Exception\Exception when something unexpected went wrong.
      */
-    public function getCommission(string $ean, float $unitPrice, ?string $condition = null): ?Model\Commission
+    public function getCommission(string $ean, float $unitPrice, ?Enum\GetCommissionCondition $condition = null): ?Model\Commission
     {
         $url = "retailer/commission/${ean}";
         $options = [
@@ -167,10 +167,10 @@ public function getUploadReport(string $uploadId): ?Model\UploadReportResponse
     /**
      * Get the product visits and the buy box percentage for an offer during a given period.
      * @param string $offerId Unique identifier for an offer.
-     * @param string $period The time unit in which the offer insights are grouped.
+     * @param Enum\GetOfferInsightsPeriod $period The time unit in which the offer insights are grouped.
      * @param int $numberOfPeriods The number of periods for which the offer insights are requested back in time. The
      * maximum available periods are 24 for MONTH, 104 for WEEK, and 730 for DAY.
-     * @param string $name The name of the requested offer insight.
+     * @param Enum\GetOfferInsightsName $name The name of the requested offer insight.
      * @return Model\OfferInsight[]
      * @throws Exception\ConnectException when an error occurred in the HTTP connection.
      * @throws Exception\ResponseException when an unexpected response was received.
@@ -178,7 +178,7 @@ public function getUploadReport(string $uploadId): ?Model\UploadReportResponse
      * @throws Exception\RateLimitException when the throttling limit has been reached for the API user.
      * @throws Exception\Exception when something unexpected went wrong.
      */
-    public function getOfferInsights(string $offerId, string $period, int $numberOfPeriods, string $name): array
+    public function getOfferInsights(string $offerId, Enum\GetOfferInsightsPeriod $period, int $numberOfPeriods, Enum\GetOfferInsightsName $name): array
     {
         $url = "retailer/insights/offer";
         $options = [
@@ -199,7 +199,7 @@ public function getOfferInsights(string $offerId, string $period, int $numberOfP
 
     /**
      * Gets the measurements for your performance indicators per week.
-     * @param string $name The type of the performance indicator
+     * @param Enum\GetPerformanceIndicatorsName $name The type of the performance indicator
      * @param string $year Year number in the ISO-8601 standard.
      * @param string $week Week number in the ISO-8601 standard. If you would like to get the relative scores from the
      * current week, please provide the current week number here. Be advised that measurements can change heavily over
@@ -211,7 +211,7 @@ public function getOfferInsights(string $offerId, string $period, int $numberOfP
      * @throws Exception\RateLimitException when the throttling limit has been reached for the API user.
      * @throws Exception\Exception when something unexpected went wrong.
      */
-    public function getPerformanceIndicators(string $name, string $year, string $week): array
+    public function getPerformanceIndicators(Enum\GetPerformanceIndicatorsName $name, string $year, string $week): array
     {
         $url = "retailer/insights/performance/indicator";
         $options = [
@@ -263,7 +263,7 @@ public function getSalesForecast(string $offerId, int $weeksAhead): Model\SalesF
      * bol.com customers are searching for. Based on the search volume per search term you can optimize your product
      * content, or spot opportunities to extend your assortment, or analyzing trends for inventory management.
      * @param string $searchTerm The search term for which you want to request the search volume.
-     * @param string $period The time unit in which the offer insights are grouped.
+     * @param Enum\GetSearchTermsPeriod $period The time unit in which the offer insights are grouped.
      * @param int $numberOfPeriods The number of periods for which the offer insights are requested back in time.
      * @param bool|null $relatedSearchTerms Indicates whether or not you want to retrieve the related search terms.
      * @return Model\SearchTerms
@@ -273,7 +273,7 @@ public function getSalesForecast(string $offerId, int $weeksAhead): Model\SalesF
      * @throws Exception\RateLimitException when the throttling limit has been reached for the API user.
      * @throws Exception\Exception when something unexpected went wrong.
      */
-    public function getSearchTerms(string $searchTerm, string $period, int $numberOfPeriods, ?bool $relatedSearchTerms = false): Model\SearchTerms
+    public function getSearchTerms(string $searchTerm, Enum\GetSearchTermsPeriod $period, int $numberOfPeriods, ?bool $relatedSearchTerms = false): Model\SearchTerms
     {
         $url = "retailer/insights/search-terms";
         $options = [
@@ -298,8 +298,8 @@ public function getSearchTerms(string $searchTerm, string $period, int $numberOf
      * @param int|null $page The requested page number with a page size of 50 items.
      * @param array $quantity Filter inventory by providing a range of quantity (min-range)-(max-range). Note that if no
      * state query is submitted in the same request, then the quantity will be filtered on regularStock by default.
-     * @param string|null $stock Filter inventory by stock level.
-     * @param string|null $state Filter inventory by stock type.
+     * @param Enum\GetInventoryStock|null $stock Filter inventory by stock level.
+     * @param Enum\GetInventoryState|null $state Filter inventory by stock type.
      * @param string|null $query Filter inventory by EAN or product title.
      * @return Model\Inventory[]
      * @throws Exception\ConnectException when an error occurred in the HTTP connection.
@@ -308,7 +308,7 @@ public function getSearchTerms(string $searchTerm, string $period, int $numberOf
      * @throws Exception\RateLimitException when the throttling limit has been reached for the API user.
      * @throws Exception\Exception when something unexpected went wrong.
      */
-    public function getInventory(?int $page = 1, array $quantity = [], ?string $stock = null, ?string $state = null, ?string $query = null): array
+    public function getInventory(?int $page = 1, array $quantity = [], ?Enum\GetInventoryStock $stock = null, ?Enum\GetInventoryState $state = null, ?string $query = null): array
     {
         $url = "retailer/inventory";
         $options = [
@@ -668,10 +668,10 @@ public function updateOfferStock(string $offerId, Model\UpdateOfferStockRequest
     /**
      * Gets a paginated list of all orders for a retailer.
      * @param int|null $page The requested page number with a page size of 50 items.
-     * @param string|null $fulfilmentMethod Fulfilled by the retailer (FBR) or fulfilled by bol.com (FBB). In order to
-     * retrieve both FBR and FBB orders, ALL can be used as a parameter.
-     * @param string|null $status To filter on order status. You can filter on either all orders independent from their
-     * status, open orders (excluding shipped and cancelled orders), and shipped orders.
+     * @param Enum\GetOrdersFulfilmentMethod|null $fulfilmentMethod Fulfilled by the retailer (FBR) or fulfilled by
+     * bol.com (FBB). In order to retrieve both FBR and FBB orders, ALL can be used as a parameter.
+     * @param Enum\GetOrdersStatus|null $status To filter on order status. You can filter on either all orders
+     * independent from their status, open orders (excluding shipped and cancelled orders), and shipped orders.
      * @param int|null $changeIntervalMinute To filter on the period in minutes during which the latest change was
      * performed on an order item.
      * @param string|null $latestChangeDate To filter on the date on which the latest change was performed on an order
@@ -683,7 +683,7 @@ public function updateOfferStock(string $offerId, Model\UpdateOfferStockRequest
      * @throws Exception\RateLimitException when the throttling limit has been reached for the API user.
      * @throws Exception\Exception when something unexpected went wrong.
      */
-    public function getOrders(?int $page = 1, ?string $fulfilmentMethod = null, ?string $status = null, ?int $changeIntervalMinute = null, ?string $latestChangeDate = null): array
+    public function getOrders(?int $page = 1, ?Enum\GetOrdersFulfilmentMethod $fulfilmentMethod = null, ?Enum\GetOrdersStatus $status = null, ?int $changeIntervalMinute = null, ?string $latestChangeDate = null): array
     {
         $url = "retailer/orders";
         $options = [
@@ -811,7 +811,8 @@ public function getProductList(Model\ProductListRequest $productListRequest, ?st
 
     /**
      * Gets the list of possible filters for products based on category or search term.
-     * @param string|null $countryCode The country for which the filters will be retrieved.
+     * @param Enum\GetProductListFiltersCountryCode|null $countryCode The country for which the filters will be
+     * retrieved.
      * @param string|null $searchTerm The search-term to get the associated categories and filters for.
      * @param string|null $categoryId The category to get the associated filters for.
      * @param string|null $AcceptLanguage The language in which the product list filters will be retrieved.
@@ -822,7 +823,7 @@ public function getProductList(Model\ProductListRequest $productListRequest, ?st
      * @throws Exception\RateLimitException when the throttling limit has been reached for the API user.
      * @throws Exception\Exception when something unexpected went wrong.
      */
-    public function getProductListFilters(?string $countryCode = null, ?string $searchTerm = null, ?string $categoryId = null, ?string $AcceptLanguage = null): ?Model\ProductListFiltersResponse
+    public function getProductListFilters(?Enum\GetProductListFiltersCountryCode $countryCode = null, ?string $searchTerm = null, ?string $categoryId = null, ?string $AcceptLanguage = null): ?Model\ProductListFiltersResponse
     {
         $url = "retailer/products/list-filters";
         $options = [
@@ -844,7 +845,7 @@ public function getProductListFilters(?string $countryCode = null, ?string $sear
     /**
      * Gets the list of asset available for the product by EAN.
      * @param string $ean The EAN number associated with this product.
-     * @param string|null $usage Type of the asset being used for.
+     * @param Enum\GetProductAssetsUsage|null $usage Type of the asset being used for.
      * @return Model\ProductAssets[]
      * @throws Exception\ConnectException when an error occurred in the HTTP connection.
      * @throws Exception\ResponseException when an unexpected response was received.
@@ -852,7 +853,7 @@ public function getProductListFilters(?string $countryCode = null, ?string $sear
      * @throws Exception\RateLimitException when the throttling limit has been reached for the API user.
      * @throws Exception\Exception when something unexpected went wrong.
      */
-    public function getProductAssets(string $ean, ?string $usage = null): array
+    public function getProductAssets(string $ean, ?Enum\GetProductAssetsUsage $usage = null): array
     {
         $url = "retailer/products/${ean}/assets";
         $options = [
@@ -874,10 +875,10 @@ public function getProductAssets(string $ean, ?string $usage = null): array
      * Use this endpoint to get a list of offers available in the webshop. The list includes offers for all retailers.
      * @param string $ean The EAN number associated with this product.
      * @param int|null $page The requested page number with a page size of 50 items.
-     * @param string|null $countryCode Countries in which this offer is currently on sale in the webshop, in ISO-3166-1
-     * format.
+     * @param Enum\GetCompetingOffersCountryCode|null $countryCode Countries in which this offer is currently on sale in
+     * the webshop, in ISO-3166-1 format.
      * @param bool|null $bestOfferOnly Indicator to request the best offer within the country for the requested EAN.
-     * @param string|null $condition The condition of the offered product.
+     * @param Enum\GetCompetingOffersCondition|null $condition The condition of the offered product.
      * @return Model\Offer[]
      * @throws Exception\ConnectException when an error occurred in the HTTP connection.
      * @throws Exception\ResponseException when an unexpected response was received.
@@ -885,7 +886,7 @@ public function getProductAssets(string $ean, ?string $usage = null): array
      * @throws Exception\RateLimitException when the throttling limit has been reached for the API user.
      * @throws Exception\Exception when something unexpected went wrong.
      */
-    public function getCompetingOffers(string $ean, ?int $page = 1, ?string $countryCode = null, ?bool $bestOfferOnly = false, ?string $condition = null): array
+    public function getCompetingOffers(string $ean, ?int $page = 1, ?Enum\GetCompetingOffersCountryCode $countryCode = null, ?bool $bestOfferOnly = false, ?Enum\GetCompetingOffersCondition $condition = null): array
     {
         $url = "retailer/products/${ean}/offers";
         $options = [
@@ -909,7 +910,7 @@ public function getCompetingOffers(string $ean, ?int $page = 1, ?string $country
     /**
      * Gets the list of categories and the URL where the product is placed in the webshop.
      * @param string $ean The EAN number associated with this product.
-     * @param string|null $countryCode The country of the product placed on the webshop.
+     * @param Enum\GetProductPlacementCountryCode|null $countryCode The country of the product placed on the webshop.
      * @param string|null $AcceptLanguage The language in which the product categories and URL will be retrieved.
      * @return Model\ProductPlacementResponse|null
      * @throws Exception\ConnectException when an error occurred in the HTTP connection.
@@ -918,7 +919,7 @@ public function getCompetingOffers(string $ean, ?int $page = 1, ?string $country
      * @throws Exception\RateLimitException when the throttling limit has been reached for the API user.
      * @throws Exception\Exception when something unexpected went wrong.
      */
-    public function getProductPlacement(string $ean, ?string $countryCode = null, ?string $AcceptLanguage = null): ?Model\ProductPlacementResponse
+    public function getProductPlacement(string $ean, ?Enum\GetProductPlacementCountryCode $countryCode = null, ?string $AcceptLanguage = null): ?Model\ProductPlacementResponse
     {
         $url = "retailer/products/${ean}/placement";
         $options = [
@@ -986,7 +987,7 @@ public function getProductRatings(string $ean): array
 
     /**
      * Gets a paginated list of all promotions for a retailer.
-     * @param string $promotionType The type(s) of promotion to be retrieved.
+     * @param Enum\GetPromotionsPromotionType $promotionType The type(s) of promotion to be retrieved.
      * @param int|null $page The requested page number with a page size of 50 items.
      * @return Model\ReducedPromotion[]
      * @throws Exception\ConnectException when an error occurred in the HTTP connection.
@@ -995,7 +996,7 @@ public function getProductRatings(string $ean): array
      * @throws Exception\RateLimitException when the throttling limit has been reached for the API user.
      * @throws Exception\Exception when something unexpected went wrong.
      */
-    public function getPromotions(string $promotionType, ?int $page = 1): array
+    public function getPromotions(Enum\GetPromotionsPromotionType $promotionType, ?int $page = 1): array
     {
         $url = "retailer/promotions";
         $options = [
@@ -1300,7 +1301,7 @@ public function putReplenishment(string $replenishmentId, Model\UpdateReplenishm
     /**
      * Retrieve the load carrier labels.
      * @param string $replenishmentId The unique identifier of the replenishment.
-     * @param string|null $labelType The type of label which you want to print.
+     * @param Enum\GetLoadCarrierLabelsLabelType|null $labelType The type of label which you want to print.
      * @return string|null
      * @throws Exception\ConnectException when an error occurred in the HTTP connection.
      * @throws Exception\ResponseException when an unexpected response was received.
@@ -1308,7 +1309,7 @@ public function putReplenishment(string $replenishmentId, Model\UpdateReplenishm
      * @throws Exception\RateLimitException when the throttling limit has been reached for the API user.
      * @throws Exception\Exception when something unexpected went wrong.
      */
-    public function getLoadCarrierLabels(string $replenishmentId, ?string $labelType = null): ?string
+    public function getLoadCarrierLabels(string $replenishmentId, ?Enum\GetLoadCarrierLabelsLabelType $labelType = null): ?string
     {
         $url = "retailer/replenishments/${replenishmentId}/load-carrier-labels";
         $options = [
@@ -1378,8 +1379,8 @@ public function getRetailerInformation(string $retailerId): ?Model\RetailerInfor
      * unhandled returns are sorted by date in ascending order.
      * @param int|null $page The page to get with a page size of 50.
      * @param bool|null $handled The status of the returns you wish to see, shows either handled or unhandled returns.
-     * @param string|null $fulfilmentMethod The fulfilment method. Fulfilled by the retailer (FBR) or fulfilled by
-     * bol.com (FBB).
+     * @param Enum\GetReturnsFulfilmentMethod|null $fulfilmentMethod The fulfilment method. Fulfilled by the retailer
+     * (FBR) or fulfilled by bol.com (FBB).
      * @return Model\ReducedReturn[]
      * @throws Exception\ConnectException when an error occurred in the HTTP connection.
      * @throws Exception\ResponseException when an unexpected response was received.
@@ -1387,7 +1388,7 @@ public function getRetailerInformation(string $retailerId): ?Model\RetailerInfor
      * @throws Exception\RateLimitException when the throttling limit has been reached for the API user.
      * @throws Exception\Exception when something unexpected went wrong.
      */
-    public function getReturns(?int $page = 1, ?bool $handled = null, ?string $fulfilmentMethod = null): array
+    public function getReturns(?int $page = 1, ?bool $handled = null, ?Enum\GetReturnsFulfilmentMethod $fulfilmentMethod = null): array
     {
         $url = "retailer/returns";
         $options = [
@@ -1486,8 +1487,8 @@ public function handleReturn(int $rmaId, Model\ReturnRequest $returnRequest): Mo
      * A paginated list to retrieve all your shipments up to 3 months old. The shipments will be sorted by date in
      * descending order.
      * @param int|null $page The page to get with a page size of 50.
-     * @param string|null $fulfilmentMethod The fulfilment method. Fulfilled by the retailer (FBR) or fulfilled by
-     * bol.com (FBB).
+     * @param Enum\GetShipmentsFulfilmentMethod|null $fulfilmentMethod The fulfilment method. Fulfilled by the retailer
+     * (FBR) or fulfilled by bol.com (FBB).
      * @param string|null $orderId The id of the order. Only valid without fulfilment-method. The default
      * fulfilment-method is ignored.
      * @return Model\ReducedShipment[]
@@ -1497,7 +1498,7 @@ public function handleReturn(int $rmaId, Model\ReturnRequest $returnRequest): Mo
      * @throws Exception\RateLimitException when the throttling limit has been reached for the API user.
      * @throws Exception\Exception when something unexpected went wrong.
      */
-    public function getShipments(?int $page = 1, ?string $fulfilmentMethod = null, ?string $orderId = null): array
+    public function getShipments(?int $page = 1, ?Enum\GetShipmentsFulfilmentMethod $fulfilmentMethod = null, ?string $orderId = null): array
     {
         $url = "retailer/shipments";
         $options = [
@@ -1847,8 +1848,9 @@ public function getPriceStarBoundaries(string $ean): ?Model\PriceStarBoundaries
      * Gets a list of paginated invoice requests initiated by customers.
      * @param string|null $shipmentId The id of the shipment.
      * @param int|null $page The requested page number with a page size of 50 items.
-     * @param string|null $state To filter on invoice request state. You can filter on all invoice requests regardless
-     * their statuses, open invoice requests requiring your action and invoice requests uploaded with possible errors.
+     * @param Enum\GetInvoiceRequestsState|null $state To filter on invoice request state. You can filter on all invoice
+     * requests regardless their statuses, open invoice requests requiring your action and invoice requests uploaded
+     * with possible errors.
      * @return Model\InvoiceRequests[]
      * @throws Exception\ConnectException when an error occurred in the HTTP connection.
      * @throws Exception\ResponseException when an unexpected response was received.
@@ -1856,7 +1858,7 @@ public function getPriceStarBoundaries(string $ean): ?Model\PriceStarBoundaries
      * @throws Exception\RateLimitException when the throttling limit has been reached for the API user.
      * @throws Exception\Exception when something unexpected went wrong.
      */
-    public function getInvoiceRequests(?string $shipmentId = null, ?int $page = 1, ?string $state = null): array
+    public function getInvoiceRequests(?string $shipmentId = null, ?int $page = 1, ?Enum\GetInvoiceRequestsState $state = null): array
     {
         $url = "retailer/shipments/invoices/requests";
         $options = [
@@ -1916,7 +1918,8 @@ public function uploadInvoice(string $shipmentId, string $invoice): ?Model\Proce
      * these statuses.
      * @param string $entityId The entity id is not unique, so you will need to provide an event type. For example, an
      * entity id can be an order item id, transport id, return number, replenishment id, campaign id, and keyword id.
-     * @param string $eventType The event type can only be used in combination with the entity id.
+     * @param Enum\GetProcessStatusEntityIdEventType $eventType The event type can only be used in combination with the
+     * entity id.
      * @param int|null $page The requested page number with a page size of 50 items.
      * @return Model\ProcessStatus[]
      * @throws Exception\ConnectException when an error occurred in the HTTP connection.
@@ -1925,7 +1928,7 @@ public function uploadInvoice(string $shipmentId, string $invoice): ?Model\Proce
      * @throws Exception\RateLimitException when the throttling limit has been reached for the API user.
      * @throws Exception\Exception when something unexpected went wrong.
      */
-    public function getProcessStatusEntityId(string $entityId, string $eventType, ?int $page = 1): array
+    public function getProcessStatusEntityId(string $entityId, Enum\GetProcessStatusEntityIdEventType $eventType, ?int $page = 1): array
     {
         $url = "shared/process-status";
         $options = [
diff --git a/src/Enum/BillingDetailsSalutation.php b/src/Enum/BillingDetailsSalutation.php
new file mode 100644
index 0000000..9d10760
--- /dev/null
+++ b/src/Enum/BillingDetailsSalutation.php
@@ -0,0 +1,11 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum BillingDetailsSalutation: string
+{
+    case MALE = 'MALE';
+    case FEMALE = 'FEMALE';
+    case UNKNOWN = 'UNKNOWN';
+}
diff --git a/src/Enum/BulkCommissionQueryCondition.php b/src/Enum/BulkCommissionQueryCondition.php
new file mode 100644
index 0000000..ba198a4
--- /dev/null
+++ b/src/Enum/BulkCommissionQueryCondition.php
@@ -0,0 +1,13 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum BulkCommissionQueryCondition: string
+{
+    case NEW = 'NEW';
+    case AS_NEW = 'AS_NEW';
+    case GOOD = 'GOOD';
+    case REASONABLE = 'REASONABLE';
+    case MODERATE = 'MODERATE';
+}
diff --git a/src/Enum/ChangeTransportRequestTransporterCode.php b/src/Enum/ChangeTransportRequestTransporterCode.php
new file mode 100644
index 0000000..12aee7c
--- /dev/null
+++ b/src/Enum/ChangeTransportRequestTransporterCode.php
@@ -0,0 +1,36 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum ChangeTransportRequestTransporterCode: string
+{
+    case BRIEFPOST = 'BRIEFPOST';
+    case UPS = 'UPS';
+    case TNT = 'TNT';
+    case TNT_EXTRA = 'TNT-EXTRA';
+    case TNT_BRIEF = 'TNT_BRIEF';
+    case TNT_EXPRESS = 'TNT-EXPRESS';
+    case DYL = 'DYL';
+    case DPD_NL = 'DPD-NL';
+    case DPD_BE = 'DPD-BE';
+    case BPOST_BE = 'BPOST_BE';
+    case BPOST_BRIEF = 'BPOST_BRIEF';
+    case DHLFORYOU = 'DHLFORYOU';
+    case GLS = 'GLS';
+    case FEDEX_NL = 'FEDEX_NL';
+    case FEDEX_BE = 'FEDEX_BE';
+    case OTHER = 'OTHER';
+    case DHL = 'DHL';
+    case DHL_DE = 'DHL_DE';
+    case DHL_GLOBAL_MAIL = 'DHL-GLOBAL-MAIL';
+    case TSN = 'TSN';
+    case FIEGE = 'FIEGE';
+    case TRANSMISSION = 'TRANSMISSION';
+    case PARCEL_NL = 'PARCEL-NL';
+    case LOGOIX = 'LOGOIX';
+    case PACKS = 'PACKS';
+    case COURIER = 'COURIER';
+    case TRUNKRS = 'TRUNKRS';
+    case CYCLOON = 'CYCLOON';
+}
diff --git a/src/Enum/ConditionCategory.php b/src/Enum/ConditionCategory.php
new file mode 100644
index 0000000..1eab0ec
--- /dev/null
+++ b/src/Enum/ConditionCategory.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum ConditionCategory: string
+{
+    case NEW = 'NEW';
+    case SECONDHAND = 'SECONDHAND';
+}
diff --git a/src/Enum/ConditionName.php b/src/Enum/ConditionName.php
new file mode 100644
index 0000000..525ef71
--- /dev/null
+++ b/src/Enum/ConditionName.php
@@ -0,0 +1,13 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum ConditionName: string
+{
+    case NEW = 'NEW';
+    case AS_NEW = 'AS_NEW';
+    case GOOD = 'GOOD';
+    case REASONABLE = 'REASONABLE';
+    case MODERATE = 'MODERATE';
+}
diff --git a/src/Enum/CreateDeliveryInfoTransporterCode.php b/src/Enum/CreateDeliveryInfoTransporterCode.php
new file mode 100644
index 0000000..a20549c
--- /dev/null
+++ b/src/Enum/CreateDeliveryInfoTransporterCode.php
@@ -0,0 +1,14 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum CreateDeliveryInfoTransporterCode: string
+{
+    case POSTNL = 'POSTNL';
+    case DHL = 'DHL';
+    case DPD = 'DPD';
+    case GLS = 'GLS';
+    case UPS = 'UPS';
+    case OTHER = 'OTHER';
+}
diff --git a/src/Enum/CreateOfferExportRequestFormat.php b/src/Enum/CreateOfferExportRequestFormat.php
new file mode 100644
index 0000000..43d13d2
--- /dev/null
+++ b/src/Enum/CreateOfferExportRequestFormat.php
@@ -0,0 +1,9 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum CreateOfferExportRequestFormat: string
+{
+    case CSV = 'CSV';
+}
diff --git a/src/Enum/CreateProductContentSingleRequestLanguage.php b/src/Enum/CreateProductContentSingleRequestLanguage.php
new file mode 100644
index 0000000..5fa1892
--- /dev/null
+++ b/src/Enum/CreateProductContentSingleRequestLanguage.php
@@ -0,0 +1,12 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum CreateProductContentSingleRequestLanguage: string
+{
+    case NL = 'nl';
+    case NL_BE = 'nl-BE';
+    case FR = 'fr';
+    case FR_BE = 'fr-BE';
+}
diff --git a/src/Enum/CreateReturnRequestHandlingResult.php b/src/Enum/CreateReturnRequestHandlingResult.php
new file mode 100644
index 0000000..667b4b1
--- /dev/null
+++ b/src/Enum/CreateReturnRequestHandlingResult.php
@@ -0,0 +1,13 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum CreateReturnRequestHandlingResult: string
+{
+    case RETURN_RECEIVED = 'RETURN_RECEIVED';
+    case EXCHANGE_PRODUCT = 'EXCHANGE_PRODUCT';
+    case RETURN_DOES_NOT_MEET_CONDITIONS = 'RETURN_DOES_NOT_MEET_CONDITIONS';
+    case REPAIR_PRODUCT = 'REPAIR_PRODUCT';
+    case CUSTOMER_KEEPS_PRODUCT_PAID = 'CUSTOMER_KEEPS_PRODUCT_PAID';
+}
diff --git a/src/Enum/CreateUnpublishedOfferReportRequestFormat.php b/src/Enum/CreateUnpublishedOfferReportRequestFormat.php
new file mode 100644
index 0000000..93ba252
--- /dev/null
+++ b/src/Enum/CreateUnpublishedOfferReportRequestFormat.php
@@ -0,0 +1,9 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum CreateUnpublishedOfferReportRequestFormat: string
+{
+    case CSV = 'CSV';
+}
diff --git a/src/Enum/CustomerDetailsSalutation.php b/src/Enum/CustomerDetailsSalutation.php
new file mode 100644
index 0000000..ee0ba43
--- /dev/null
+++ b/src/Enum/CustomerDetailsSalutation.php
@@ -0,0 +1,11 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum CustomerDetailsSalutation: string
+{
+    case MALE = 'MALE';
+    case FEMALE = 'FEMALE';
+    case UNKNOWN = 'UNKNOWN';
+}
diff --git a/src/Enum/DeliveryInformationTransporterCode.php b/src/Enum/DeliveryInformationTransporterCode.php
new file mode 100644
index 0000000..2ed84e5
--- /dev/null
+++ b/src/Enum/DeliveryInformationTransporterCode.php
@@ -0,0 +1,14 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum DeliveryInformationTransporterCode: string
+{
+    case POSTNL = 'POSTNL';
+    case DHL = 'DHL';
+    case DPD = 'DPD';
+    case GLS = 'GLS';
+    case UPS = 'UPS';
+    case OTHER = 'OTHER';
+}
diff --git a/src/Enum/DeliveryOptionLabelType.php b/src/Enum/DeliveryOptionLabelType.php
new file mode 100644
index 0000000..e003356
--- /dev/null
+++ b/src/Enum/DeliveryOptionLabelType.php
@@ -0,0 +1,11 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum DeliveryOptionLabelType: string
+{
+    case PARCEL = 'PARCEL';
+    case MAILBOX = 'MAILBOX';
+    case MAILBOX_LIGHT = 'MAILBOX_LIGHT';
+}
diff --git a/src/Enum/FulfilmentDeliveryCode.php b/src/Enum/FulfilmentDeliveryCode.php
new file mode 100644
index 0000000..c21eeb9
--- /dev/null
+++ b/src/Enum/FulfilmentDeliveryCode.php
@@ -0,0 +1,27 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum FulfilmentDeliveryCode: string
+{
+    case _24UURS_23 = '24uurs-23';
+    case _24UURS_22 = '24uurs-22';
+    case _24UURS_21 = '24uurs-21';
+    case _24UURS_20 = '24uurs-20';
+    case _24UURS_19 = '24uurs-19';
+    case _24UURS_18 = '24uurs-18';
+    case _24UURS_17 = '24uurs-17';
+    case _24UURS_16 = '24uurs-16';
+    case _24UURS_15 = '24uurs-15';
+    case _24UURS_14 = '24uurs-14';
+    case _24UURS_13 = '24uurs-13';
+    case _24UURS_12 = '24uurs-12';
+    case _1_2D = '1-2d';
+    case _2_3D = '2-3d';
+    case _3_5D = '3-5d';
+    case _4_8D = '4-8d';
+    case _1_8D = '1-8d';
+    case MIJNLEVERBELOFTE = 'MijnLeverbelofte';
+    case VVB = 'VVB';
+}
diff --git a/src/Enum/FulfilmentMethod.php b/src/Enum/FulfilmentMethod.php
new file mode 100644
index 0000000..9b36bfa
--- /dev/null
+++ b/src/Enum/FulfilmentMethod.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum FulfilmentMethod: string
+{
+    case FBR = 'FBR';
+    case FBB = 'FBB';
+}
diff --git a/src/Enum/GetCatalogProductAcceptLanguage.php b/src/Enum/GetCatalogProductAcceptLanguage.php
new file mode 100644
index 0000000..861431f
--- /dev/null
+++ b/src/Enum/GetCatalogProductAcceptLanguage.php
@@ -0,0 +1,12 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum GetCatalogProductAcceptLanguage: string
+{
+    case NL = 'nl';
+    case NL_BE = 'nl-BE';
+    case FR = 'fr';
+    case FR_BE = 'fr-BE';
+}
diff --git a/src/Enum/GetCommissionCondition.php b/src/Enum/GetCommissionCondition.php
new file mode 100644
index 0000000..75eef66
--- /dev/null
+++ b/src/Enum/GetCommissionCondition.php
@@ -0,0 +1,13 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum GetCommissionCondition: string
+{
+    case NEW = 'NEW';
+    case AS_NEW = 'AS_NEW';
+    case GOOD = 'GOOD';
+    case REASONABLE = 'REASONABLE';
+    case MODERATE = 'MODERATE';
+}
diff --git a/src/Enum/GetCompetingOffersCondition.php b/src/Enum/GetCompetingOffersCondition.php
new file mode 100644
index 0000000..bcf9974
--- /dev/null
+++ b/src/Enum/GetCompetingOffersCondition.php
@@ -0,0 +1,15 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum GetCompetingOffersCondition: string
+{
+    case ALL = 'ALL';
+    case BAD = 'BAD';
+    case MODERATE = 'MODERATE';
+    case REASONABLE = 'REASONABLE';
+    case GOOD = 'GOOD';
+    case AS_NEW = 'AS_NEW';
+    case NEW = 'NEW';
+}
diff --git a/src/Enum/GetCompetingOffersCountryCode.php b/src/Enum/GetCompetingOffersCountryCode.php
new file mode 100644
index 0000000..48b9efb
--- /dev/null
+++ b/src/Enum/GetCompetingOffersCountryCode.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum GetCompetingOffersCountryCode: string
+{
+    case NL = 'NL';
+    case BE = 'BE';
+}
diff --git a/src/Enum/GetInventoryState.php b/src/Enum/GetInventoryState.php
new file mode 100644
index 0000000..4f13001
--- /dev/null
+++ b/src/Enum/GetInventoryState.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum GetInventoryState: string
+{
+    case REGULAR = 'REGULAR';
+    case GRADED = 'GRADED';
+}
diff --git a/src/Enum/GetInventoryStock.php b/src/Enum/GetInventoryStock.php
new file mode 100644
index 0000000..147d59d
--- /dev/null
+++ b/src/Enum/GetInventoryStock.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum GetInventoryStock: string
+{
+    case SUFFICIENT = 'SUFFICIENT';
+    case INSUFFICIENT = 'INSUFFICIENT';
+}
diff --git a/src/Enum/GetInvoiceRequestsState.php b/src/Enum/GetInvoiceRequestsState.php
new file mode 100644
index 0000000..1f8a3a9
--- /dev/null
+++ b/src/Enum/GetInvoiceRequestsState.php
@@ -0,0 +1,11 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum GetInvoiceRequestsState: string
+{
+    case OPEN = 'OPEN';
+    case UPLOAD_ERROR = 'UPLOAD_ERROR';
+    case ALL = 'ALL';
+}
diff --git a/src/Enum/GetLoadCarrierLabelsLabelType.php b/src/Enum/GetLoadCarrierLabelsLabelType.php
new file mode 100644
index 0000000..dbd9d18
--- /dev/null
+++ b/src/Enum/GetLoadCarrierLabelsLabelType.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum GetLoadCarrierLabelsLabelType: string
+{
+    case WAREHOUSE = 'WAREHOUSE';
+    case TRANSPORT = 'TRANSPORT';
+}
diff --git a/src/Enum/GetOfferInsightsName.php b/src/Enum/GetOfferInsightsName.php
new file mode 100644
index 0000000..3034deb
--- /dev/null
+++ b/src/Enum/GetOfferInsightsName.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum GetOfferInsightsName: string
+{
+    case PRODUCT_VISITS = 'PRODUCT_VISITS';
+    case BUY_BOX_PERCENTAGE = 'BUY_BOX_PERCENTAGE';
+}
diff --git a/src/Enum/GetOfferInsightsPeriod.php b/src/Enum/GetOfferInsightsPeriod.php
new file mode 100644
index 0000000..7f1e197
--- /dev/null
+++ b/src/Enum/GetOfferInsightsPeriod.php
@@ -0,0 +1,11 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum GetOfferInsightsPeriod: string
+{
+    case DAY = 'DAY';
+    case WEEK = 'WEEK';
+    case MONTH = 'MONTH';
+}
diff --git a/src/Enum/GetOrdersFulfilmentMethod.php b/src/Enum/GetOrdersFulfilmentMethod.php
new file mode 100644
index 0000000..8bf5f89
--- /dev/null
+++ b/src/Enum/GetOrdersFulfilmentMethod.php
@@ -0,0 +1,11 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum GetOrdersFulfilmentMethod: string
+{
+    case FBR = 'FBR';
+    case FBB = 'FBB';
+    case ALL = 'ALL';
+}
diff --git a/src/Enum/GetOrdersStatus.php b/src/Enum/GetOrdersStatus.php
new file mode 100644
index 0000000..528fbac
--- /dev/null
+++ b/src/Enum/GetOrdersStatus.php
@@ -0,0 +1,11 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum GetOrdersStatus: string
+{
+    case OPEN = 'OPEN';
+    case SHIPPED = 'SHIPPED';
+    case ALL = 'ALL';
+}
diff --git a/src/Enum/GetPerformanceIndicatorsName.php b/src/Enum/GetPerformanceIndicatorsName.php
new file mode 100644
index 0000000..2ffe9a1
--- /dev/null
+++ b/src/Enum/GetPerformanceIndicatorsName.php
@@ -0,0 +1,16 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum GetPerformanceIndicatorsName: string
+{
+    case CANCELLATIONS = 'CANCELLATIONS';
+    case FULFILMENT = 'FULFILMENT';
+    case PHONE_AVAILABILITY = 'PHONE_AVAILABILITY';
+    case RESPONSE_TIME = 'RESPONSE_TIME';
+    case CASE_ITEM_RATIO = 'CASE_ITEM_RATIO';
+    case TRACK_AND_TRACE = 'TRACK_AND_TRACE';
+    case RETURNS = 'RETURNS';
+    case REVIEWS = 'REVIEWS';
+}
diff --git a/src/Enum/GetProcessStatusEntityIdEventType.php b/src/Enum/GetProcessStatusEntityIdEventType.php
new file mode 100644
index 0000000..f7aaad1
--- /dev/null
+++ b/src/Enum/GetProcessStatusEntityIdEventType.php
@@ -0,0 +1,45 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum GetProcessStatusEntityIdEventType: string
+{
+    case CONFIRM_SHIPMENT = 'CONFIRM_SHIPMENT';
+    case CANCEL_ORDER = 'CANCEL_ORDER';
+    case CHANGE_TRANSPORT = 'CHANGE_TRANSPORT';
+    case HANDLE_RETURN_ITEM = 'HANDLE_RETURN_ITEM';
+    case CREATE_RETURN_ITEM = 'CREATE_RETURN_ITEM';
+    case CREATE_INBOUND = 'CREATE_INBOUND';
+    case DELETE_OFFER = 'DELETE_OFFER';
+    case CREATE_OFFER = 'CREATE_OFFER';
+    case UPDATE_OFFER = 'UPDATE_OFFER';
+    case UPDATE_OFFER_STOCK = 'UPDATE_OFFER_STOCK';
+    case UPDATE_OFFER_PRICE = 'UPDATE_OFFER_PRICE';
+    case CREATE_OFFER_EXPORT = 'CREATE_OFFER_EXPORT';
+    case UNPUBLISHED_OFFER_REPORT = 'UNPUBLISHED_OFFER_REPORT';
+    case CREATE_PRODUCT_CONTENT = 'CREATE_PRODUCT_CONTENT';
+    case CREATE_SUBSCRIPTION = 'CREATE_SUBSCRIPTION';
+    case UPDATE_SUBSCRIPTION = 'UPDATE_SUBSCRIPTION';
+    case DELETE_SUBSCRIPTION = 'DELETE_SUBSCRIPTION';
+    case SEND_SUBSCRIPTION_TST_MSG = 'SEND_SUBSCRIPTION_TST_MSG';
+    case CREATE_SHIPPING_LABEL = 'CREATE_SHIPPING_LABEL';
+    case CREATE_REPLENISHMENT = 'CREATE_REPLENISHMENT';
+    case UPDATE_REPLENISHMENT = 'UPDATE_REPLENISHMENT';
+    case CREATE_CAMPAIGN = 'CREATE_CAMPAIGN';
+    case UPDATE_CAMPAIGN = 'UPDATE_CAMPAIGN';
+    case CREATE_AD_GROUP = 'CREATE_AD_GROUP';
+    case UPDATE_AD_GROUP = 'UPDATE_AD_GROUP';
+    case CREATE_TARGET_PRODUCT = 'CREATE_TARGET_PRODUCT';
+    case UPDATE_TARGET_PRODUCT = 'UPDATE_TARGET_PRODUCT';
+    case CREATE_NEGATIVE_KEYWORD = 'CREATE_NEGATIVE_KEYWORD';
+    case DELETE_NEGATIVE_KEYWORD = 'DELETE_NEGATIVE_KEYWORD';
+    case CREATE_KEYWORD = 'CREATE_KEYWORD';
+    case UPDATE_KEYWORD = 'UPDATE_KEYWORD';
+    case DELETE_KEYWORD = 'DELETE_KEYWORD';
+    case REQUEST_PRODUCT_DESTINATIONS = 'REQUEST_PRODUCT_DESTINATIONS';
+    case CREATE_SOV_SEARCH_TERM_REPORT = 'CREATE_SOV_SEARCH_TERM_REPORT';
+    case CREATE_SOV_CATEGORY_REPORT = 'CREATE_SOV_CATEGORY_REPORT';
+    case UPLOAD_INVOICE = 'UPLOAD_INVOICE';
+    case CREATE_CAMPAIGN_PERFORMANCE_REPORT = 'CREATE_CAMPAIGN_PERFORMANCE_REPORT';
+}
diff --git a/src/Enum/GetProductAssetsUsage.php b/src/Enum/GetProductAssetsUsage.php
new file mode 100644
index 0000000..2e510cf
--- /dev/null
+++ b/src/Enum/GetProductAssetsUsage.php
@@ -0,0 +1,11 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum GetProductAssetsUsage: string
+{
+    case PRIMARY = 'PRIMARY';
+    case ADDITIONAL = 'ADDITIONAL';
+    case IMAGE = 'IMAGE';
+}
diff --git a/src/Enum/GetProductListAcceptLanguage.php b/src/Enum/GetProductListAcceptLanguage.php
new file mode 100644
index 0000000..f063408
--- /dev/null
+++ b/src/Enum/GetProductListAcceptLanguage.php
@@ -0,0 +1,12 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum GetProductListAcceptLanguage: string
+{
+    case NL = 'nl';
+    case NL_BE = 'nl-BE';
+    case NL_NL = 'nl-NL';
+    case FR_BE = 'fr-BE';
+}
diff --git a/src/Enum/GetProductListFiltersAcceptLanguage.php b/src/Enum/GetProductListFiltersAcceptLanguage.php
new file mode 100644
index 0000000..66ee7db
--- /dev/null
+++ b/src/Enum/GetProductListFiltersAcceptLanguage.php
@@ -0,0 +1,12 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum GetProductListFiltersAcceptLanguage: string
+{
+    case NL = 'nl';
+    case NL_BE = 'nl-BE';
+    case NL_NL = 'nl-NL';
+    case FR_BE = 'fr-BE';
+}
diff --git a/src/Enum/GetProductListFiltersCountryCode.php b/src/Enum/GetProductListFiltersCountryCode.php
new file mode 100644
index 0000000..69ad790
--- /dev/null
+++ b/src/Enum/GetProductListFiltersCountryCode.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum GetProductListFiltersCountryCode: string
+{
+    case NL = 'NL';
+    case BE = 'BE';
+}
diff --git a/src/Enum/GetProductPlacementAcceptLanguage.php b/src/Enum/GetProductPlacementAcceptLanguage.php
new file mode 100644
index 0000000..5ed6118
--- /dev/null
+++ b/src/Enum/GetProductPlacementAcceptLanguage.php
@@ -0,0 +1,11 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum GetProductPlacementAcceptLanguage: string
+{
+    case NL = 'nl';
+    case NL_BE = 'nl-BE';
+    case FR_BE = 'fr-BE';
+}
diff --git a/src/Enum/GetProductPlacementCountryCode.php b/src/Enum/GetProductPlacementCountryCode.php
new file mode 100644
index 0000000..808b4d6
--- /dev/null
+++ b/src/Enum/GetProductPlacementCountryCode.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum GetProductPlacementCountryCode: string
+{
+    case NL = 'NL';
+    case BE = 'BE';
+}
diff --git a/src/Enum/GetPromotionsPromotionType.php b/src/Enum/GetPromotionsPromotionType.php
new file mode 100644
index 0000000..acd8ef5
--- /dev/null
+++ b/src/Enum/GetPromotionsPromotionType.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum GetPromotionsPromotionType: string
+{
+    case AWARENESS = 'AWARENESS';
+    case PRICE_OFF = 'PRICE_OFF';
+}
diff --git a/src/Enum/GetReturnsFulfilmentMethod.php b/src/Enum/GetReturnsFulfilmentMethod.php
new file mode 100644
index 0000000..558cf42
--- /dev/null
+++ b/src/Enum/GetReturnsFulfilmentMethod.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum GetReturnsFulfilmentMethod: string
+{
+    case FBR = 'FBR';
+    case FBB = 'FBB';
+}
diff --git a/src/Enum/GetSearchTermsPeriod.php b/src/Enum/GetSearchTermsPeriod.php
new file mode 100644
index 0000000..ae06754
--- /dev/null
+++ b/src/Enum/GetSearchTermsPeriod.php
@@ -0,0 +1,11 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum GetSearchTermsPeriod: string
+{
+    case DAY = 'DAY';
+    case WEEK = 'WEEK';
+    case MONTH = 'MONTH';
+}
diff --git a/src/Enum/GetShipmentsFulfilmentMethod.php b/src/Enum/GetShipmentsFulfilmentMethod.php
new file mode 100644
index 0000000..88c9a72
--- /dev/null
+++ b/src/Enum/GetShipmentsFulfilmentMethod.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum GetShipmentsFulfilmentMethod: string
+{
+    case FBR = 'FBR';
+    case FBB = 'FBB';
+}
diff --git a/src/Enum/HandoverDetailsCollectionMethod.php b/src/Enum/HandoverDetailsCollectionMethod.php
new file mode 100644
index 0000000..0c10165
--- /dev/null
+++ b/src/Enum/HandoverDetailsCollectionMethod.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum HandoverDetailsCollectionMethod: string
+{
+    case DROP_OFF = 'DROP_OFF';
+    case PICK_UP = 'PICK_UP';
+}
diff --git a/src/Enum/InvalidReplenishmentLineType.php b/src/Enum/InvalidReplenishmentLineType.php
new file mode 100644
index 0000000..6006def
--- /dev/null
+++ b/src/Enum/InvalidReplenishmentLineType.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum InvalidReplenishmentLineType: string
+{
+    case UNKNOWN_FBB_PRODUCT = 'UNKNOWN_FBB_PRODUCT';
+    case UNKNOWN_EAN_INVENTORY_RELATION = 'UNKNOWN_EAN_INVENTORY_RELATION';
+}
diff --git a/src/Enum/KeySetType.php b/src/Enum/KeySetType.php
new file mode 100644
index 0000000..ba3d9b0
--- /dev/null
+++ b/src/Enum/KeySetType.php
@@ -0,0 +1,9 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum KeySetType: string
+{
+    case RSA = 'RSA';
+}
diff --git a/src/Enum/LoadCarrierTransportState.php b/src/Enum/LoadCarrierTransportState.php
new file mode 100644
index 0000000..4ff6a69
--- /dev/null
+++ b/src/Enum/LoadCarrierTransportState.php
@@ -0,0 +1,14 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum LoadCarrierTransportState: string
+{
+    case ANNOUNCED = 'ANNOUNCED';
+    case PICKED_UP = 'PICKED_UP';
+    case UNDERWAY = 'UNDERWAY';
+    case DELAYED = 'DELAYED';
+    case ARRIVED = 'ARRIVED';
+    case ERROR = 'ERROR';
+}
diff --git a/src/Enum/NormCondition.php b/src/Enum/NormCondition.php
new file mode 100644
index 0000000..2788398
--- /dev/null
+++ b/src/Enum/NormCondition.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum NormCondition: string
+{
+    case LTE = '<=';
+    case GTE = '>=';
+}
diff --git a/src/Enum/OrderFulfilmentDistributionParty.php b/src/Enum/OrderFulfilmentDistributionParty.php
new file mode 100644
index 0000000..cde3783
--- /dev/null
+++ b/src/Enum/OrderFulfilmentDistributionParty.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum OrderFulfilmentDistributionParty: string
+{
+    case RETAILER = 'RETAILER';
+    case BOL = 'BOL';
+}
diff --git a/src/Enum/OrderFulfilmentTimeFrameType.php b/src/Enum/OrderFulfilmentTimeFrameType.php
new file mode 100644
index 0000000..5841ba9
--- /dev/null
+++ b/src/Enum/OrderFulfilmentTimeFrameType.php
@@ -0,0 +1,13 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum OrderFulfilmentTimeFrameType: string
+{
+    case REGULAR = 'REGULAR';
+    case EVENING = 'EVENING';
+    case APPOINTMENT = 'APPOINTMENT';
+    case SAMEDAY = 'SAMEDAY';
+    case SUNDAY = 'SUNDAY';
+}
diff --git a/src/Enum/OrderItemCancellationReasonCode.php b/src/Enum/OrderItemCancellationReasonCode.php
new file mode 100644
index 0000000..812883d
--- /dev/null
+++ b/src/Enum/OrderItemCancellationReasonCode.php
@@ -0,0 +1,20 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum OrderItemCancellationReasonCode: string
+{
+    case OUT_OF_STOCK = 'OUT_OF_STOCK';
+    case REQUESTED_BY_CUSTOMER = 'REQUESTED_BY_CUSTOMER';
+    case BAD_CONDITION = 'BAD_CONDITION';
+    case HIGHER_SHIPCOST = 'HIGHER_SHIPCOST';
+    case INCORRECT_PRICE = 'INCORRECT_PRICE';
+    case NOT_AVAIL_IN_TIME = 'NOT_AVAIL_IN_TIME';
+    case NO_BOL_GUARANTEE = 'NO_BOL_GUARANTEE';
+    case ORDERED_TWICE = 'ORDERED_TWICE';
+    case RETAIN_ITEM = 'RETAIN_ITEM';
+    case TECH_ISSUE = 'TECH_ISSUE';
+    case UNFINDABLE_ITEM = 'UNFINDABLE_ITEM';
+    case OTHER = 'OTHER';
+}
diff --git a/src/Enum/PerformanceIndicatorName.php b/src/Enum/PerformanceIndicatorName.php
new file mode 100644
index 0000000..022a393
--- /dev/null
+++ b/src/Enum/PerformanceIndicatorName.php
@@ -0,0 +1,16 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum PerformanceIndicatorName: string
+{
+    case CANCELLATIONS = 'CANCELLATIONS';
+    case FULFILMENT = 'FULFILMENT';
+    case PHONE_AVAILABILITY = 'PHONE_AVAILABILITY';
+    case RESPONSE_TIME = 'RESPONSE_TIME';
+    case CASE_ITEM_RATIO = 'CASE_ITEM_RATIO';
+    case TRACK_AND_TRACE = 'TRACK_AND_TRACE';
+    case RETURNS = 'RETURNS';
+    case REVIEWS = 'REVIEWS';
+}
diff --git a/src/Enum/PerformanceIndicatorType.php b/src/Enum/PerformanceIndicatorType.php
new file mode 100644
index 0000000..cd43bff
--- /dev/null
+++ b/src/Enum/PerformanceIndicatorType.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum PerformanceIndicatorType: string
+{
+    case PERCENTAGE = 'PERCENTAGE';
+    case AVERAGE = 'AVERAGE';
+}
diff --git a/src/Enum/PickupAppointmentCancellationReason.php b/src/Enum/PickupAppointmentCancellationReason.php
new file mode 100644
index 0000000..8a6b152
--- /dev/null
+++ b/src/Enum/PickupAppointmentCancellationReason.php
@@ -0,0 +1,15 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum PickupAppointmentCancellationReason: string
+{
+    case UNKNOWN_ADDRESS = 'UNKNOWN_ADDRESS';
+    case NOT_READY = 'NOT_READY';
+    case NO_LABEL = 'NO_LABEL';
+    case WRONG_PACKAGE = 'WRONG_PACKAGE';
+    case NOT_AT_HOME = 'NOT_AT_HOME';
+    case OTHER_REASON = 'OTHER_REASON';
+    case REQUEST_FROM_RETAILER = 'REQUEST_FROM_RETAILER';
+}
diff --git a/src/Enum/ProcessStatusStatus.php b/src/Enum/ProcessStatusStatus.php
new file mode 100644
index 0000000..159fdb8
--- /dev/null
+++ b/src/Enum/ProcessStatusStatus.php
@@ -0,0 +1,12 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum ProcessStatusStatus: string
+{
+    case PENDING = 'PENDING';
+    case SUCCESS = 'SUCCESS';
+    case FAILURE = 'FAILURE';
+    case TIMEOUT = 'TIMEOUT';
+}
diff --git a/src/Enum/ProductAssetsUsage.php b/src/Enum/ProductAssetsUsage.php
new file mode 100644
index 0000000..e050ffc
--- /dev/null
+++ b/src/Enum/ProductAssetsUsage.php
@@ -0,0 +1,11 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum ProductAssetsUsage: string
+{
+    case PRIMARY = 'PRIMARY';
+    case ADDITIONAL = 'ADDITIONAL';
+    case IMAGE = 'IMAGE';
+}
diff --git a/src/Enum/ProductAssetsVariantsMimeType.php b/src/Enum/ProductAssetsVariantsMimeType.php
new file mode 100644
index 0000000..280fa0a
--- /dev/null
+++ b/src/Enum/ProductAssetsVariantsMimeType.php
@@ -0,0 +1,12 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum ProductAssetsVariantsMimeType: string
+{
+    case IMAGE_JPEG = 'image/jpeg';
+    case APPLICATION_PDF = 'application/pdf';
+    case APPLICATION_X_MPEGURL = 'application/x-mpegurl';
+    case VIDEO_MP4 = 'video/mp4';
+}
diff --git a/src/Enum/ProductAssetsVariantsSize.php b/src/Enum/ProductAssetsVariantsSize.php
new file mode 100644
index 0000000..5385acb
--- /dev/null
+++ b/src/Enum/ProductAssetsVariantsSize.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum ProductAssetsVariantsSize: string
+{
+    case SMALL = 'small';
+    case MEDIUM = 'medium';
+}
diff --git a/src/Enum/ProductLabelsRequestLabelFormat.php b/src/Enum/ProductLabelsRequestLabelFormat.php
new file mode 100644
index 0000000..28d8010
--- /dev/null
+++ b/src/Enum/ProductLabelsRequestLabelFormat.php
@@ -0,0 +1,14 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum ProductLabelsRequestLabelFormat: string
+{
+    case AVERY_J8159 = 'AVERY_J8159';
+    case AVERY_J8160 = 'AVERY_J8160';
+    case AVERY_3474 = 'AVERY_3474';
+    case DYMO_99012 = 'DYMO_99012';
+    case BROTHER_DK11208D = 'BROTHER_DK11208D';
+    case ZEBRA_Z_PERFORM_1000T = 'ZEBRA_Z_PERFORM_1000T';
+}
diff --git a/src/Enum/ProductListRequestCountryCode.php b/src/Enum/ProductListRequestCountryCode.php
new file mode 100644
index 0000000..c768876
--- /dev/null
+++ b/src/Enum/ProductListRequestCountryCode.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum ProductListRequestCountryCode: string
+{
+    case NL = 'NL';
+    case BE = 'BE';
+}
diff --git a/src/Enum/ProductListRequestSort.php b/src/Enum/ProductListRequestSort.php
new file mode 100644
index 0000000..946a892
--- /dev/null
+++ b/src/Enum/ProductListRequestSort.php
@@ -0,0 +1,15 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum ProductListRequestSort: string
+{
+    case RELEVANCE = 'RELEVANCE';
+    case POPULARITY = 'POPULARITY';
+    case PRICE_ASC = 'PRICE_ASC';
+    case PRICE_DESC = 'PRICE_DESC';
+    case RELEASE_DATE = 'RELEASE_DATE';
+    case RATING = 'RATING';
+    case WISHLIST = 'WISHLIST';
+}
diff --git a/src/Enum/ProductListResponseSort.php b/src/Enum/ProductListResponseSort.php
new file mode 100644
index 0000000..a1ed474
--- /dev/null
+++ b/src/Enum/ProductListResponseSort.php
@@ -0,0 +1,15 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum ProductListResponseSort: string
+{
+    case RELEVANCE = 'RELEVANCE';
+    case POPULARITY = 'POPULARITY';
+    case PRICE_ASC = 'PRICE_ASC';
+    case PRICE_DESC = 'PRICE_DESC';
+    case RELEASE_DATE = 'RELEASE_DATE';
+    case RATING = 'RATING';
+    case WISHLIST = 'WISHLIST';
+}
diff --git a/src/Enum/PromotionCountryCodeCountryCode.php b/src/Enum/PromotionCountryCodeCountryCode.php
new file mode 100644
index 0000000..60af1c2
--- /dev/null
+++ b/src/Enum/PromotionCountryCodeCountryCode.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum PromotionCountryCodeCountryCode: string
+{
+    case NL = 'NL';
+    case BE = 'BE';
+}
diff --git a/src/Enum/PromotionPromotionType.php b/src/Enum/PromotionPromotionType.php
new file mode 100644
index 0000000..6d674b8
--- /dev/null
+++ b/src/Enum/PromotionPromotionType.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum PromotionPromotionType: string
+{
+    case AWARENESS = 'AWARENESS';
+    case PRICE_OFF = 'PRICE_OFF';
+}
diff --git a/src/Enum/ReducedInvalidReplenishmentLineType.php b/src/Enum/ReducedInvalidReplenishmentLineType.php
new file mode 100644
index 0000000..e8b28a5
--- /dev/null
+++ b/src/Enum/ReducedInvalidReplenishmentLineType.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum ReducedInvalidReplenishmentLineType: string
+{
+    case UNKNOWN_FBB_PRODUCT = 'UNKNOWN_FBB_PRODUCT';
+    case UNKNOWN_EAN_INVENTORY_RELATION = 'UNKNOWN_EAN_INVENTORY_RELATION';
+}
diff --git a/src/Enum/ReducedPromotionPromotionType.php b/src/Enum/ReducedPromotionPromotionType.php
new file mode 100644
index 0000000..f586d81
--- /dev/null
+++ b/src/Enum/ReducedPromotionPromotionType.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum ReducedPromotionPromotionType: string
+{
+    case AWARENESS = 'AWARENESS';
+    case PRICE_OFF = 'PRICE_OFF';
+}
diff --git a/src/Enum/RelevanceScoreCountryCode.php b/src/Enum/RelevanceScoreCountryCode.php
new file mode 100644
index 0000000..4467537
--- /dev/null
+++ b/src/Enum/RelevanceScoreCountryCode.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum RelevanceScoreCountryCode: string
+{
+    case NL = 'NL';
+    case BE = 'BE';
+}
diff --git a/src/Enum/ReplenishmentLineLineState.php b/src/Enum/ReplenishmentLineLineState.php
new file mode 100644
index 0000000..95875c6
--- /dev/null
+++ b/src/Enum/ReplenishmentLineLineState.php
@@ -0,0 +1,11 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum ReplenishmentLineLineState: string
+{
+    case ANNOUNCED = 'ANNOUNCED';
+    case UNANNOUNCED = 'UNANNOUNCED';
+    case UNKNOWN = 'UNKNOWN';
+}
diff --git a/src/Enum/ReplenishmentResponseState.php b/src/Enum/ReplenishmentResponseState.php
new file mode 100644
index 0000000..9867358
--- /dev/null
+++ b/src/Enum/ReplenishmentResponseState.php
@@ -0,0 +1,14 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum ReplenishmentResponseState: string
+{
+    case ANNOUNCED = 'ANNOUNCED';
+    case IN_TRANSIT = 'IN_TRANSIT';
+    case ARRIVED_AT_WH = 'ARRIVED_AT_WH';
+    case IN_PROGRESS_AT_WH = 'IN_PROGRESS_AT_WH';
+    case CANCELLED = 'CANCELLED';
+    case DONE = 'DONE';
+}
diff --git a/src/Enum/RetailerInformationResponseRatingMethod.php b/src/Enum/RetailerInformationResponseRatingMethod.php
new file mode 100644
index 0000000..0b54811
--- /dev/null
+++ b/src/Enum/RetailerInformationResponseRatingMethod.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum RetailerInformationResponseRatingMethod: string
+{
+    case ALL_REVIEWS = 'ALL_REVIEWS';
+    case THREE_MONTHS = 'THREE_MONTHS';
+}
diff --git a/src/Enum/ReturnRequestHandlingResult.php b/src/Enum/ReturnRequestHandlingResult.php
new file mode 100644
index 0000000..6b8a350
--- /dev/null
+++ b/src/Enum/ReturnRequestHandlingResult.php
@@ -0,0 +1,14 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum ReturnRequestHandlingResult: string
+{
+    case RETURN_RECEIVED = 'RETURN_RECEIVED';
+    case EXCHANGE_PRODUCT = 'EXCHANGE_PRODUCT';
+    case RETURN_DOES_NOT_MEET_CONDITIONS = 'RETURN_DOES_NOT_MEET_CONDITIONS';
+    case REPAIR_PRODUCT = 'REPAIR_PRODUCT';
+    case CUSTOMER_KEEPS_PRODUCT_PAID = 'CUSTOMER_KEEPS_PRODUCT_PAID';
+    case STILL_APPROVED = 'STILL_APPROVED';
+}
diff --git a/src/Enum/ShipmentDetailsLanguage.php b/src/Enum/ShipmentDetailsLanguage.php
new file mode 100644
index 0000000..25cb243
--- /dev/null
+++ b/src/Enum/ShipmentDetailsLanguage.php
@@ -0,0 +1,12 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum ShipmentDetailsLanguage: string
+{
+    case NL = 'nl';
+    case NL_BE = 'nl-BE';
+    case FR = 'fr';
+    case FR_BE = 'fr-BE';
+}
diff --git a/src/Enum/ShipmentDetailsSalutation.php b/src/Enum/ShipmentDetailsSalutation.php
new file mode 100644
index 0000000..1bad69d
--- /dev/null
+++ b/src/Enum/ShipmentDetailsSalutation.php
@@ -0,0 +1,11 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum ShipmentDetailsSalutation: string
+{
+    case MALE = 'MALE';
+    case FEMALE = 'FEMALE';
+    case UNKNOWN = 'UNKNOWN';
+}
diff --git a/src/Enum/ShipmentFulfilmentDistributionParty.php b/src/Enum/ShipmentFulfilmentDistributionParty.php
new file mode 100644
index 0000000..098a709
--- /dev/null
+++ b/src/Enum/ShipmentFulfilmentDistributionParty.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum ShipmentFulfilmentDistributionParty: string
+{
+    case RETAILER = 'RETAILER';
+    case BOL = 'BOL';
+}
diff --git a/src/Enum/ShipmentFulfilmentMethod.php b/src/Enum/ShipmentFulfilmentMethod.php
new file mode 100644
index 0000000..44fba5a
--- /dev/null
+++ b/src/Enum/ShipmentFulfilmentMethod.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum ShipmentFulfilmentMethod: string
+{
+    case FBR = 'FBR';
+    case FBB = 'FBB';
+}
diff --git a/src/Enum/StateTransitionState.php b/src/Enum/StateTransitionState.php
new file mode 100644
index 0000000..e926d5c
--- /dev/null
+++ b/src/Enum/StateTransitionState.php
@@ -0,0 +1,15 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum StateTransitionState: string
+{
+    case DRAFT = 'DRAFT';
+    case ANNOUNCED = 'ANNOUNCED';
+    case IN_TRANSIT = 'IN_TRANSIT';
+    case ARRIVED_AT_WH = 'ARRIVED_AT_WH';
+    case IN_PROGRESS_AT_WH = 'IN_PROGRESS_AT_WH';
+    case CANCELLED = 'CANCELLED';
+    case DONE = 'DONE';
+}
diff --git a/src/Enum/StatusTransitionsStatus.php b/src/Enum/StatusTransitionsStatus.php
new file mode 100644
index 0000000..2f395fe
--- /dev/null
+++ b/src/Enum/StatusTransitionsStatus.php
@@ -0,0 +1,13 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum StatusTransitionsStatus: string
+{
+    case INVOICE_REQUESTED = 'INVOICE_REQUESTED';
+    case INVOICE_UPLOADED = 'INVOICE_UPLOADED';
+    case INVOICE_INCORRECT = 'INVOICE_INCORRECT';
+    case INVOICE_VIRUS_DETECTED = 'INVOICE_VIRUS_DETECTED';
+    case FINISHED = 'FINISHED';
+}
diff --git a/src/Enum/SubscriptionRequestSubscriptionType.php b/src/Enum/SubscriptionRequestSubscriptionType.php
new file mode 100644
index 0000000..83b0ea5
--- /dev/null
+++ b/src/Enum/SubscriptionRequestSubscriptionType.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum SubscriptionRequestSubscriptionType: string
+{
+    case WEBHOOK = 'WEBHOOK';
+    case GCP_PUBSUB = 'GCP_PUBSUB';
+}
diff --git a/src/Enum/SubscriptionResponseSubscriptionType.php b/src/Enum/SubscriptionResponseSubscriptionType.php
new file mode 100644
index 0000000..a3fb7e7
--- /dev/null
+++ b/src/Enum/SubscriptionResponseSubscriptionType.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum SubscriptionResponseSubscriptionType: string
+{
+    case WEBHOOK = 'WEBHOOK';
+    case GCP_PUBSUB = 'GCP_PUBSUB';
+}
diff --git a/src/Enum/TransportEventEventCode.php b/src/Enum/TransportEventEventCode.php
new file mode 100644
index 0000000..00bfec3
--- /dev/null
+++ b/src/Enum/TransportEventEventCode.php
@@ -0,0 +1,16 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum TransportEventEventCode: string
+{
+    case PRE_ANNOUNCED = 'PRE_ANNOUNCED';
+    case AT_TRANSPORTER = 'AT_TRANSPORTER';
+    case IN_TRANSIT = 'IN_TRANSIT';
+    case DELIVERED_AT_NEIGHBOURS = 'DELIVERED_AT_NEIGHBOURS';
+    case DELIVERED_AT_CUSTOMER = 'DELIVERED_AT_CUSTOMER';
+    case PICKED_UP_AT_PICK_UP_POINT = 'PICKED_UP_AT_PICK_UP_POINT';
+    case AT_PICK_UP_POINT = 'AT_PICK_UP_POINT';
+    case RETURNED_TO_SENDER = 'RETURNED_TO_SENDER';
+}
diff --git a/src/Enum/UpdateReplenishmentRequestState.php b/src/Enum/UpdateReplenishmentRequestState.php
new file mode 100644
index 0000000..5a04311
--- /dev/null
+++ b/src/Enum/UpdateReplenishmentRequestState.php
@@ -0,0 +1,9 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum UpdateReplenishmentRequestState: string
+{
+    case CANCELLED = 'CANCELLED';
+}
diff --git a/src/Enum/UploadReportAssetStatus.php b/src/Enum/UploadReportAssetStatus.php
new file mode 100644
index 0000000..dddc061
--- /dev/null
+++ b/src/Enum/UploadReportAssetStatus.php
@@ -0,0 +1,11 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum UploadReportAssetStatus: string
+{
+    case IN_PROGRESS = 'IN_PROGRESS';
+    case DECLINED = 'DECLINED';
+    case PUBLISHED = 'PUBLISHED';
+}
diff --git a/src/Enum/UploadReportAssetSubStatus.php b/src/Enum/UploadReportAssetSubStatus.php
new file mode 100644
index 0000000..d1379cc
--- /dev/null
+++ b/src/Enum/UploadReportAssetSubStatus.php
@@ -0,0 +1,29 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum UploadReportAssetSubStatus: string
+{
+    case DELETED = 'DELETED';
+    case DOWNLOAD_FAILED_404 = 'DOWNLOAD_FAILED_404';
+    case DOWNLOAD_FAILED_UNAUTHORIZED = 'DOWNLOAD_FAILED_UNAUTHORIZED';
+    case IMAGE_FLAGGED_AS_DUPLICATE = 'IMAGE_FLAGGED_AS_DUPLICATE';
+    case IMAGE_RATE_LIMITED = 'IMAGE_RATE_LIMITED';
+    case IMPORT_FAILED = 'IMPORT_FAILED';
+    case LABEL_UPDATED = 'LABEL_UPDATED';
+    case MATCH_TO_PRODUCT_FAILED = 'MATCH_TO_PRODUCT_FAILED';
+    case NOT_VALID_FOR_IMPORT = 'NOT_VALID_FOR_IMPORT';
+    case PUBLISHED = 'PUBLISHED';
+    case RECEIVED = 'RECEIVED';
+    case SCORED_OTHER_IMAGE_WON = 'SCORED_OTHER_IMAGE_WON';
+    case STORED = 'STORED';
+    case SUPPLIED_FLAGGED_AS_BLACKLISTED = 'SUPPLIED_FLAGGED_AS_BLACKLISTED';
+    case UNKNOWN = 'UNKNOWN';
+    case UNPUBLISHED = 'UNPUBLISHED';
+    case UNSUPPORTED_MIMETYPE = 'UNSUPPORTED_MIMETYPE';
+    case UPLOAD_CANCELLED = 'UPLOAD_CANCELLED';
+    case UPLOAD_DEADLINE_REACHED = 'UPLOAD_DEADLINE_REACHED';
+    case UPLOAD_FAILED = 'UPLOAD_FAILED';
+    case UPLOAD_REJECTED = 'UPLOAD_REJECTED';
+}
diff --git a/src/Enum/UploadReportAttributeStatus.php b/src/Enum/UploadReportAttributeStatus.php
new file mode 100644
index 0000000..8acf15f
--- /dev/null
+++ b/src/Enum/UploadReportAttributeStatus.php
@@ -0,0 +1,11 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum UploadReportAttributeStatus: string
+{
+    case IN_PROGRESS = 'IN_PROGRESS';
+    case DECLINED = 'DECLINED';
+    case PUBLISHED = 'PUBLISHED';
+}
diff --git a/src/Enum/UploadReportAttributeSubStatus.php b/src/Enum/UploadReportAttributeSubStatus.php
new file mode 100644
index 0000000..c91c47f
--- /dev/null
+++ b/src/Enum/UploadReportAttributeSubStatus.php
@@ -0,0 +1,55 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum UploadReportAttributeSubStatus: string
+{
+    case BLOCKED_BY_RATE_LIMITER = 'BLOCKED_BY_RATE_LIMITER';
+    case CREATED = 'CREATED';
+    case DEPRECATED = 'DEPRECATED';
+    case IDENTICAL_VALUE_AS_BEFORE = 'IDENTICAL_VALUE_AS_BEFORE';
+    case MATCH_TO_PRODUCT_FAILED = 'MATCH_TO_PRODUCT_FAILED';
+    case NOT_CHANGED = 'NOT_CHANGED';
+    case NOT_RECENT = 'NOT_RECENT';
+    case PROCESSING_STARTED = 'PROCESSING_STARTED';
+    case RECEIVED = 'RECEIVED';
+    case REJECTED = 'REJECTED';
+    case REJECTED_BY_BRAND_AUTHORITY = 'REJECTED_BY_BRAND_AUTHORITY';
+    case REJECTED_BY_LOGISTIC = 'REJECTED_BY_LOGISTIC';
+    case REJECTED_NO_DATA = 'REJECTED_NO_DATA';
+    case REJECTED_UNPROCESSABLE = 'REJECTED_UNPROCESSABLE';
+    case SELECTED = 'SELECTED';
+    case SELECTED_BY_BRAND_AUTHORITY = 'SELECTED_BY_BRAND_AUTHORITY';
+    case SELECTED_BY_LOGISTIC = 'SELECTED_BY_LOGISTIC';
+    case SELECTION_DELETED = 'SELECTION_DELETED';
+    case SELECTION_MERGED = 'SELECTION_MERGED';
+    case TIMED_OUT = 'TIMED_OUT';
+    case UPDATED = 'UPDATED';
+    case UPLOADED = 'UPLOADED';
+    case UNKNOWN = 'UNKNOWN';
+    case VALID_EAN = 'VALID_EAN';
+    case VALIDATED = 'VALIDATED';
+    case VALIDATION_FAILED = 'VALIDATION_FAILED';
+    case VALIDATION_FAILED_DISABLED_GPC_CODE = 'VALIDATION_FAILED_DISABLED_GPC_CODE';
+    case VALIDATION_FAILED_DOES_NOT_EXIST = 'VALIDATION_FAILED_DOES_NOT_EXIST';
+    case VALIDATION_FAILED_INVALID_DATE = 'VALIDATION_FAILED_INVALID_DATE';
+    case VALIDATION_FAILED_INVALID_EAN = 'VALIDATION_FAILED_INVALID_EAN';
+    case VALIDATION_FAILED_INVALID_FRACTION = 'VALIDATION_FAILED_INVALID_FRACTION';
+    case VALIDATION_FAILED_INVALID_GPC_CODE = 'VALIDATION_FAILED_INVALID_GPC_CODE';
+    case VALIDATION_FAILED_INVALID_INTEGER = 'VALIDATION_FAILED_INVALID_INTEGER';
+    case VALIDATION_FAILED_INVALID_ISODATE = 'VALIDATION_FAILED_INVALID_ISODATE';
+    case VALIDATION_FAILED_INVALID_ISODATETIME = 'VALIDATION_FAILED_INVALID_ISODATETIME';
+    case VALIDATION_FAILED_INVALID_LOV_VALUE = 'VALIDATION_FAILED_INVALID_LOV_VALUE';
+    case VALIDATION_FAILED_INVALID_MULTIPLE_VALUES = 'VALIDATION_FAILED_INVALID_MULTIPLE_VALUES';
+    case VALIDATION_FAILED_INVALID_NO_VALUES = 'VALIDATION_FAILED_INVALID_NO_VALUES';
+    case VALIDATION_FAILED_INVALID_NUMBER = 'VALIDATION_FAILED_INVALID_NUMBER';
+    case VALIDATION_FAILED_INVALID_NUMERIC_TEXT = 'VALIDATION_FAILED_INVALID_NUMERIC_TEXT';
+    case VALIDATION_FAILED_INVALID_TEXT = 'VALIDATION_FAILED_INVALID_TEXT';
+    case VALIDATION_FAILED_INVALID_UNIT = 'VALIDATION_FAILED_INVALID_UNIT';
+    case VALIDATION_FAILED_INVALID_URL = 'VALIDATION_FAILED_INVALID_URL';
+    case VALIDATION_FAILED_INVALID_VALUES = 'VALIDATION_FAILED_INVALID_VALUES';
+    case VALIDATION_FAILED_NOT_ALLOWED = 'VALIDATION_FAILED_NOT_ALLOWED';
+    case VALIDATION_FAILED_UNKNOWN_BASETYPE = 'VALIDATION_FAILED_UNKNOWN_BASETYPE';
+    case WAITING_FOR_GLOBAL_ID = 'WAITING_FOR_GLOBAL_ID';
+}
diff --git a/src/Enum/UploadReportResponseLanguage.php b/src/Enum/UploadReportResponseLanguage.php
new file mode 100644
index 0000000..33d8fce
--- /dev/null
+++ b/src/Enum/UploadReportResponseLanguage.php
@@ -0,0 +1,12 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum UploadReportResponseLanguage: string
+{
+    case NL = 'nl';
+    case NL_BE = 'nl-BE';
+    case FR = 'fr';
+    case FR_BE = 'fr-BE';
+}
diff --git a/src/Enum/UploadReportResponseStatus.php b/src/Enum/UploadReportResponseStatus.php
new file mode 100644
index 0000000..5d1c32c
--- /dev/null
+++ b/src/Enum/UploadReportResponseStatus.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Enum;
+
+// This class is auto generated by OpenApi\ModelGenerator
+enum UploadReportResponseStatus: string
+{
+    case IN_PROGRESS = 'IN_PROGRESS';
+    case COMPLETED = 'COMPLETED';
+}
diff --git a/src/Model/AbstractModel.php b/src/Model/AbstractModel.php
index a772396..d7592ac 100644
--- a/src/Model/AbstractModel.php
+++ b/src/Model/AbstractModel.php
@@ -36,7 +36,7 @@ public function fromArray(array $data): void
                 continue;
             }
 
-            if ($definition['model'] == null) {
+            if ($definition['model'] == null && $definition['enum'] == null) {
                 $this->$field = $data[$field];
             } elseif ($definition['array']) {
                 $this->$field = array_map(function ($data) use ($definition) {
@@ -49,8 +49,12 @@ public function fromArray(array $data): void
             } else {
                 if ($data[$field] instanceof AbstractModel) {
                     $this->$field = $data[$field];
-                } else {
+                } elseif ($data[$field] instanceof \UnitEnum) {
+                    $this->$field = $data[$field];
+                } elseif ($definition['model']) {
                     $this->$field = $definition['model']::constructFromArray($data[$field]);
+                } elseif ($definition['enum']) {
+                    $this->$field = $definition['enum']::from($data[$field]);
                 }
             }
         }
diff --git a/src/Model/AdditionalService.php b/src/Model/AdditionalService.php
index 99d57dc..d9cabf7 100644
--- a/src/Model/AdditionalService.php
+++ b/src/Model/AdditionalService.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class AdditionalService extends AbstractModel
 {
@@ -15,7 +17,7 @@ class AdditionalService extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'serviceType' => [ 'model' => null, 'array' => false ],
+            'serviceType' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/Address.php b/src/Model/Address.php
index e03c9bc..d39d579 100644
--- a/src/Model/Address.php
+++ b/src/Model/Address.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class Address extends AbstractModel
 {
@@ -15,13 +17,13 @@ class Address extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'streetName' => [ 'model' => null, 'array' => false ],
-            'houseNumber' => [ 'model' => null, 'array' => false ],
-            'houseNumberExtension' => [ 'model' => null, 'array' => false ],
-            'zipCode' => [ 'model' => null, 'array' => false ],
-            'city' => [ 'model' => null, 'array' => false ],
-            'countryCode' => [ 'model' => null, 'array' => false ],
-            'attentionOf' => [ 'model' => null, 'array' => false ],
+            'streetName' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'houseNumber' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'houseNumberExtension' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'zipCode' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'city' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'countryCode' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'attentionOf' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/Asset.php b/src/Model/Asset.php
index 2dd2d61..44949e1 100644
--- a/src/Model/Asset.php
+++ b/src/Model/Asset.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class Asset extends AbstractModel
 {
@@ -15,8 +17,8 @@ class Asset extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'url' => [ 'model' => null, 'array' => false ],
-            'labels' => [ 'model' => null, 'array' => true ],
+            'url' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'labels' => [ 'model' => null, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/Attribute.php b/src/Model/Attribute.php
index a987b1c..ab83108 100644
--- a/src/Model/Attribute.php
+++ b/src/Model/Attribute.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class Attribute extends AbstractModel
 {
@@ -15,8 +17,8 @@ class Attribute extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'id' => [ 'model' => null, 'array' => false ],
-            'values' => [ 'model' => AttributeValue::class, 'array' => true ],
+            'id' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'values' => [ 'model' => AttributeValue::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/AttributeValue.php b/src/Model/AttributeValue.php
index 15ddae0..8815c1e 100644
--- a/src/Model/AttributeValue.php
+++ b/src/Model/AttributeValue.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class AttributeValue extends AbstractModel
 {
@@ -15,8 +17,8 @@ class AttributeValue extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'value' => [ 'model' => null, 'array' => false ],
-            'unitId' => [ 'model' => null, 'array' => false ],
+            'value' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'unitId' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/Attributes.php b/src/Model/Attributes.php
index a85ea30..a0223d0 100644
--- a/src/Model/Attributes.php
+++ b/src/Model/Attributes.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class Attributes extends AbstractModel
 {
@@ -15,8 +17,8 @@ class Attributes extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'id' => [ 'model' => null, 'array' => false ],
-            'values' => [ 'model' => Values::class, 'array' => true ],
+            'id' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'values' => [ 'model' => Values::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/AudioTracks.php b/src/Model/AudioTracks.php
index 7b2b60c..3ec19db 100644
--- a/src/Model/AudioTracks.php
+++ b/src/Model/AudioTracks.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class AudioTracks extends AbstractModel
 {
@@ -15,14 +17,14 @@ class AudioTracks extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'discNumber' => [ 'model' => null, 'array' => false ],
-            'trackNumber' => [ 'model' => null, 'array' => false ],
-            'discSide' => [ 'model' => null, 'array' => false ],
-            'title' => [ 'model' => null, 'array' => false ],
-            'artistName' => [ 'model' => null, 'array' => false ],
-            'playTime' => [ 'model' => null, 'array' => false ],
-            'clipUrl' => [ 'model' => null, 'array' => false ],
-            'clipType' => [ 'model' => null, 'array' => false ],
+            'discNumber' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'trackNumber' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'discSide' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'title' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'artistName' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'playTime' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'clipUrl' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'clipType' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/Authentication/TokenRequest.php b/src/Model/Authentication/TokenRequest.php
index f533523..bdfe9ea 100644
--- a/src/Model/Authentication/TokenRequest.php
+++ b/src/Model/Authentication/TokenRequest.php
@@ -9,10 +9,10 @@ class TokenRequest extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'grant_type' => [ 'model' => null, 'array' => false ],
-            'code' => [ 'model' => null, 'array' => true ],
-            'redirect_uri' => [ 'model' => null, 'array' => true ],
-            'refresh_token' => [ 'model' => null, 'array' => true ],
+            'grant_type' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'code' => [ 'model' => null, 'enum' => null, 'array' => true ],
+            'redirect_uri' => [ 'model' => null, 'enum' => null, 'array' => true ],
+            'refresh_token' => [ 'model' => null, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/Authentication/TokenResponse.php b/src/Model/Authentication/TokenResponse.php
index ba696d3..8ab6838 100644
--- a/src/Model/Authentication/TokenResponse.php
+++ b/src/Model/Authentication/TokenResponse.php
@@ -9,11 +9,11 @@ class TokenResponse extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'expires_in' => [ 'model' => null, 'array' => false ],
-            'refresh_token' => [ 'model' => null, 'array' => true ],
-            'token_type' => [ 'model' => null, 'array' => true ],
-            'scope' => [ 'model' => null, 'array' => true ],
-            'access_token' => [ 'model' => null, 'array' => true ],
+            'expires_in' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'refresh_token' => [ 'model' => null, 'enum' => null, 'array' => true ],
+            'token_type' => [ 'model' => null, 'enum' => null, 'array' => true ],
+            'scope' => [ 'model' => null, 'enum' => null, 'array' => true ],
+            'access_token' => [ 'model' => null, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/BillingDetails.php b/src/Model/BillingDetails.php
index eee5b15..ca81e42 100644
--- a/src/Model/BillingDetails.php
+++ b/src/Model/BillingDetails.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class BillingDetails extends AbstractModel
 {
@@ -15,23 +17,23 @@ class BillingDetails extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'salutation' => [ 'model' => null, 'array' => false ],
-            'firstName' => [ 'model' => null, 'array' => false ],
-            'surname' => [ 'model' => null, 'array' => false ],
-            'streetName' => [ 'model' => null, 'array' => false ],
-            'houseNumber' => [ 'model' => null, 'array' => false ],
-            'houseNumberExtension' => [ 'model' => null, 'array' => false ],
-            'zipCode' => [ 'model' => null, 'array' => false ],
-            'city' => [ 'model' => null, 'array' => false ],
-            'countryCode' => [ 'model' => null, 'array' => false ],
-            'company' => [ 'model' => null, 'array' => false ],
-            'vatNumber' => [ 'model' => null, 'array' => false ],
-            'kvkNumber' => [ 'model' => null, 'array' => false ],
+            'salutation' => [ 'model' => null, 'enum' => Enum\BillingDetailsSalutation::class, 'array' => false ],
+            'firstName' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'surname' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'streetName' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'houseNumber' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'houseNumberExtension' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'zipCode' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'city' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'countryCode' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'company' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'vatNumber' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'kvkNumber' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
     /**
-     * @var string The salutation of the customer.
+     * @var Enum\BillingDetailsSalutation The salutation of the customer.
      */
     public $salutation;
 
diff --git a/src/Model/BulkCommissionQuery.php b/src/Model/BulkCommissionQuery.php
index 9849579..a98e1d0 100644
--- a/src/Model/BulkCommissionQuery.php
+++ b/src/Model/BulkCommissionQuery.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class BulkCommissionQuery extends AbstractModel
 {
@@ -15,9 +17,9 @@ class BulkCommissionQuery extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'ean' => [ 'model' => null, 'array' => false ],
-            'condition' => [ 'model' => null, 'array' => false ],
-            'unitPrice' => [ 'model' => null, 'array' => false ],
+            'ean' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'condition' => [ 'model' => null, 'enum' => Enum\BulkCommissionQueryCondition::class, 'array' => false ],
+            'unitPrice' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
@@ -27,7 +29,7 @@ public function getModelDefinition(): array
     public $ean;
 
     /**
-     * @var string The condition of the offer.
+     * @var Enum\BulkCommissionQueryCondition The condition of the offer.
      */
     public $condition;
 
diff --git a/src/Model/BulkCommissionRequest.php b/src/Model/BulkCommissionRequest.php
index 510205a..cfa76f0 100644
--- a/src/Model/BulkCommissionRequest.php
+++ b/src/Model/BulkCommissionRequest.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class BulkCommissionRequest extends AbstractModel
 {
@@ -15,7 +17,7 @@ class BulkCommissionRequest extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'commissionQueries' => [ 'model' => BulkCommissionQuery::class, 'array' => true ],
+            'commissionQueries' => [ 'model' => BulkCommissionQuery::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/BulkCommissionResponse.php b/src/Model/BulkCommissionResponse.php
index 61c7690..0b54c2b 100644
--- a/src/Model/BulkCommissionResponse.php
+++ b/src/Model/BulkCommissionResponse.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class BulkCommissionResponse extends AbstractModel
 {
@@ -15,7 +17,7 @@ class BulkCommissionResponse extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'commissions' => [ 'model' => Commission::class, 'array' => true ],
+            'commissions' => [ 'model' => Commission::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/BulkProcessStatusRequest.php b/src/Model/BulkProcessStatusRequest.php
index e350953..3d2410b 100644
--- a/src/Model/BulkProcessStatusRequest.php
+++ b/src/Model/BulkProcessStatusRequest.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class BulkProcessStatusRequest extends AbstractModel
 {
@@ -15,7 +17,7 @@ class BulkProcessStatusRequest extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'processStatusQueries' => [ 'model' => ProcessStatusId::class, 'array' => true ],
+            'processStatusQueries' => [ 'model' => ProcessStatusId::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/BundlePrice.php b/src/Model/BundlePrice.php
index 6c9e042..c545e4a 100644
--- a/src/Model/BundlePrice.php
+++ b/src/Model/BundlePrice.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class BundlePrice extends AbstractModel
 {
@@ -15,8 +17,8 @@ class BundlePrice extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'quantity' => [ 'model' => null, 'array' => false ],
-            'unitPrice' => [ 'model' => null, 'array' => false ],
+            'quantity' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'unitPrice' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/Campaign.php b/src/Model/Campaign.php
index a1cccf2..65f512b 100644
--- a/src/Model/Campaign.php
+++ b/src/Model/Campaign.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class Campaign extends AbstractModel
 {
@@ -15,9 +17,9 @@ class Campaign extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'name' => [ 'model' => null, 'array' => false ],
-            'startDateTime' => [ 'model' => null, 'array' => false ],
-            'endDateTime' => [ 'model' => null, 'array' => false ],
+            'name' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'startDateTime' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'endDateTime' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/CancellationRequest.php b/src/Model/CancellationRequest.php
index a8797cc..b91eb65 100644
--- a/src/Model/CancellationRequest.php
+++ b/src/Model/CancellationRequest.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class CancellationRequest extends AbstractModel
 {
@@ -15,7 +17,7 @@ class CancellationRequest extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'orderItems' => [ 'model' => OrderItemCancellation::class, 'array' => true ],
+            'orderItems' => [ 'model' => OrderItemCancellation::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/CatalogProduct.php b/src/Model/CatalogProduct.php
index e6f2341..ce93fcf 100644
--- a/src/Model/CatalogProduct.php
+++ b/src/Model/CatalogProduct.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class CatalogProduct extends AbstractModel
 {
@@ -15,13 +17,13 @@ class CatalogProduct extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'published' => [ 'model' => null, 'array' => false ],
-            'gpc' => [ 'model' => Gpc::class, 'array' => false ],
-            'enrichment' => [ 'model' => Enrichment::class, 'array' => false ],
-            'attributes' => [ 'model' => Attributes::class, 'array' => true ],
-            'parties' => [ 'model' => Party::class, 'array' => true ],
-            'audioTracks' => [ 'model' => AudioTracks::class, 'array' => true ],
-            'series' => [ 'model' => Serie::class, 'array' => true ],
+            'published' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'gpc' => [ 'model' => Gpc::class, 'enum' => null, 'array' => false ],
+            'enrichment' => [ 'model' => Enrichment::class, 'enum' => null, 'array' => false ],
+            'attributes' => [ 'model' => Attributes::class, 'enum' => null, 'array' => true ],
+            'parties' => [ 'model' => Party::class, 'enum' => null, 'array' => true ],
+            'audioTracks' => [ 'model' => AudioTracks::class, 'enum' => null, 'array' => true ],
+            'series' => [ 'model' => Serie::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/Categories.php b/src/Model/Categories.php
index eaabb15..4acc1b2 100644
--- a/src/Model/Categories.php
+++ b/src/Model/Categories.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class Categories extends AbstractModel
 {
@@ -15,8 +17,8 @@ class Categories extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'categoryName' => [ 'model' => null, 'array' => false ],
-            'categoryValues' => [ 'model' => CategoryValues::class, 'array' => true ],
+            'categoryName' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'categoryValues' => [ 'model' => CategoryValues::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/Category.php b/src/Model/Category.php
index 886bc98..26ee0d2 100644
--- a/src/Model/Category.php
+++ b/src/Model/Category.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class Category extends AbstractModel
 {
@@ -15,9 +17,9 @@ class Category extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'categoryId' => [ 'model' => null, 'array' => false ],
-            'categoryName' => [ 'model' => null, 'array' => false ],
-            'subcategories' => [ 'model' => SubCategory::class, 'array' => true ],
+            'categoryId' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'categoryName' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'subcategories' => [ 'model' => SubCategory::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/CategoryValues.php b/src/Model/CategoryValues.php
index ae5f1f2..5d686d5 100644
--- a/src/Model/CategoryValues.php
+++ b/src/Model/CategoryValues.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class CategoryValues extends AbstractModel
 {
@@ -15,8 +17,8 @@ class CategoryValues extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'categoryValueId' => [ 'model' => null, 'array' => false ],
-            'categoryValueName' => [ 'model' => null, 'array' => false ],
+            'categoryValueId' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'categoryValueName' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/ChangeTransportRequest.php b/src/Model/ChangeTransportRequest.php
index 0f780d7..1a046da 100644
--- a/src/Model/ChangeTransportRequest.php
+++ b/src/Model/ChangeTransportRequest.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ChangeTransportRequest extends AbstractModel
 {
@@ -15,13 +17,13 @@ class ChangeTransportRequest extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'transporterCode' => [ 'model' => null, 'array' => false ],
-            'trackAndTrace' => [ 'model' => null, 'array' => false ],
+            'transporterCode' => [ 'model' => null, 'enum' => Enum\ChangeTransportRequestTransporterCode::class, 'array' => false ],
+            'trackAndTrace' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
     /**
-     * @var string
+     * @var Enum\ChangeTransportRequestTransporterCode
      */
     public $transporterCode;
 
diff --git a/src/Model/ChunkRecommendationsAttribute.php b/src/Model/ChunkRecommendationsAttribute.php
index 67cc3d4..c961d05 100644
--- a/src/Model/ChunkRecommendationsAttribute.php
+++ b/src/Model/ChunkRecommendationsAttribute.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ChunkRecommendationsAttribute extends AbstractModel
 {
@@ -15,8 +17,8 @@ class ChunkRecommendationsAttribute extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'id' => [ 'model' => null, 'array' => false ],
-            'values' => [ 'model' => ChunkRecommendationsValue::class, 'array' => true ],
+            'id' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'values' => [ 'model' => ChunkRecommendationsValue::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/ChunkRecommendationsAttributes.php b/src/Model/ChunkRecommendationsAttributes.php
index 3f63062..1c41ed1 100644
--- a/src/Model/ChunkRecommendationsAttributes.php
+++ b/src/Model/ChunkRecommendationsAttributes.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ChunkRecommendationsAttributes extends AbstractModel
 {
@@ -15,7 +17,7 @@ class ChunkRecommendationsAttributes extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'attributes' => [ 'model' => ChunkRecommendationsAttribute::class, 'array' => true ],
+            'attributes' => [ 'model' => ChunkRecommendationsAttribute::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/ChunkRecommendationsPrediction.php b/src/Model/ChunkRecommendationsPrediction.php
index b511a87..71bd328 100644
--- a/src/Model/ChunkRecommendationsPrediction.php
+++ b/src/Model/ChunkRecommendationsPrediction.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ChunkRecommendationsPrediction extends AbstractModel
 {
@@ -15,8 +17,8 @@ class ChunkRecommendationsPrediction extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'chunkId' => [ 'model' => null, 'array' => false ],
-            'probability' => [ 'model' => null, 'array' => false ],
+            'chunkId' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'probability' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/ChunkRecommendationsPredictions.php b/src/Model/ChunkRecommendationsPredictions.php
index 7ba52b8..dd08494 100644
--- a/src/Model/ChunkRecommendationsPredictions.php
+++ b/src/Model/ChunkRecommendationsPredictions.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ChunkRecommendationsPredictions extends AbstractModel
 {
@@ -15,7 +17,7 @@ class ChunkRecommendationsPredictions extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'predictions' => [ 'model' => ChunkRecommendationsPrediction::class, 'array' => true ],
+            'predictions' => [ 'model' => ChunkRecommendationsPrediction::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/ChunkRecommendationsRequest.php b/src/Model/ChunkRecommendationsRequest.php
index 7812576..5c57002 100644
--- a/src/Model/ChunkRecommendationsRequest.php
+++ b/src/Model/ChunkRecommendationsRequest.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ChunkRecommendationsRequest extends AbstractModel
 {
@@ -15,7 +17,7 @@ class ChunkRecommendationsRequest extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'productContents' => [ 'model' => ChunkRecommendationsAttributes::class, 'array' => true ],
+            'productContents' => [ 'model' => ChunkRecommendationsAttributes::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/ChunkRecommendationsResponse.php b/src/Model/ChunkRecommendationsResponse.php
index efdb5b5..c5dde42 100644
--- a/src/Model/ChunkRecommendationsResponse.php
+++ b/src/Model/ChunkRecommendationsResponse.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ChunkRecommendationsResponse extends AbstractModel
 {
@@ -15,7 +17,7 @@ class ChunkRecommendationsResponse extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'recommendations' => [ 'model' => ChunkRecommendationsPredictions::class, 'array' => true ],
+            'recommendations' => [ 'model' => ChunkRecommendationsPredictions::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/ChunkRecommendationsValue.php b/src/Model/ChunkRecommendationsValue.php
index f6b1e5d..a6ecb3c 100644
--- a/src/Model/ChunkRecommendationsValue.php
+++ b/src/Model/ChunkRecommendationsValue.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ChunkRecommendationsValue extends AbstractModel
 {
@@ -15,7 +17,7 @@ class ChunkRecommendationsValue extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'value' => [ 'model' => null, 'array' => false ],
+            'value' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/Commission.php b/src/Model/Commission.php
index a2b124e..9b56ca4 100644
--- a/src/Model/Commission.php
+++ b/src/Model/Commission.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class Commission extends AbstractModel
 {
@@ -15,14 +17,14 @@ class Commission extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'ean' => [ 'model' => null, 'array' => false ],
-            'condition' => [ 'model' => null, 'array' => false ],
-            'unitPrice' => [ 'model' => null, 'array' => false ],
-            'fixedAmount' => [ 'model' => null, 'array' => false ],
-            'percentage' => [ 'model' => null, 'array' => false ],
-            'totalCost' => [ 'model' => null, 'array' => false ],
-            'totalCostWithoutReduction' => [ 'model' => null, 'array' => false ],
-            'reductions' => [ 'model' => Reduction::class, 'array' => true ],
+            'ean' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'condition' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'unitPrice' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'fixedAmount' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'percentage' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'totalCost' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'totalCostWithoutReduction' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'reductions' => [ 'model' => Reduction::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/CompetingOffersResponse.php b/src/Model/CompetingOffersResponse.php
index e216fe2..d3823d2 100644
--- a/src/Model/CompetingOffersResponse.php
+++ b/src/Model/CompetingOffersResponse.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class CompetingOffersResponse extends AbstractModel
 {
@@ -15,7 +17,7 @@ class CompetingOffersResponse extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'offers' => [ 'model' => Offer::class, 'array' => true ],
+            'offers' => [ 'model' => Offer::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/Condition.php b/src/Model/Condition.php
index ceaa511..c2caef6 100644
--- a/src/Model/Condition.php
+++ b/src/Model/Condition.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class Condition extends AbstractModel
 {
@@ -15,19 +17,19 @@ class Condition extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'name' => [ 'model' => null, 'array' => false ],
-            'category' => [ 'model' => null, 'array' => false ],
-            'comment' => [ 'model' => null, 'array' => false ],
+            'name' => [ 'model' => null, 'enum' => Enum\ConditionName::class, 'array' => false ],
+            'category' => [ 'model' => null, 'enum' => Enum\ConditionCategory::class, 'array' => false ],
+            'comment' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
     /**
-     * @var string The condition of the offered product.
+     * @var Enum\ConditionName The condition of the offered product.
      */
     public $name;
 
     /**
-     * @var string The category of the condition. If not given NEW or SECONDHAND is derived from NAME.
+     * @var Enum\ConditionCategory The category of the condition. If not given NEW or SECONDHAND is derived from NAME.
      */
     public $category;
 
diff --git a/src/Model/ContainerForTheOrderItemsThatHaveToBeCancelled.php b/src/Model/ContainerForTheOrderItemsThatHaveToBeCancelled.php
deleted file mode 100644
index e9fc97a..0000000
--- a/src/Model/ContainerForTheOrderItemsThatHaveToBeCancelled.php
+++ /dev/null
@@ -1,26 +0,0 @@
-<?php
-
-namespace Picqer\BolRetailerV10\Model;
-
-// This class is auto generated by OpenApi\ModelGenerator
-class ContainerForTheOrderItemsThatHaveToBeCancelled extends AbstractModel
-{
-    /**
-     * Returns the definition of the model: an associative array with field names as key and
-     * field definition as value. The field definition contains of
-     * model: Model class or null if it is a scalar type
-     * array: Boolean whether it is an array
-     * @return array The model definition
-     */
-    public function getModelDefinition(): array
-    {
-        return [
-            'orderItems' => [ 'model' => OrderItemCancellation::class, 'array' => true ],
-        ];
-    }
-
-    /**
-     * @var OrderItemCancellation[] List of order items to cancel. Order item id's must belong to the same order.
-     */
-    public $orderItems = [];
-}
diff --git a/src/Model/Countries.php b/src/Model/Countries.php
index 9cdff55..d9635df 100644
--- a/src/Model/Countries.php
+++ b/src/Model/Countries.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class Countries extends AbstractModel
 {
@@ -15,9 +17,9 @@ class Countries extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'countryCode' => [ 'model' => null, 'array' => false ],
-            'minimum' => [ 'model' => null, 'array' => false ],
-            'maximum' => [ 'model' => null, 'array' => false ],
+            'countryCode' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'minimum' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'maximum' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/CreateAddress.php b/src/Model/CreateAddress.php
index 23f5403..91d6151 100644
--- a/src/Model/CreateAddress.php
+++ b/src/Model/CreateAddress.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class CreateAddress extends AbstractModel
 {
@@ -15,13 +17,13 @@ class CreateAddress extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'streetName' => [ 'model' => null, 'array' => false ],
-            'houseNumber' => [ 'model' => null, 'array' => false ],
-            'zipCode' => [ 'model' => null, 'array' => false ],
-            'houseNumberExtension' => [ 'model' => null, 'array' => false ],
-            'city' => [ 'model' => null, 'array' => false ],
-            'countryCode' => [ 'model' => null, 'array' => false ],
-            'attentionOf' => [ 'model' => null, 'array' => false ],
+            'streetName' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'houseNumber' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'zipCode' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'houseNumberExtension' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'city' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'countryCode' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'attentionOf' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/CreateDeliveryInfo.php b/src/Model/CreateDeliveryInfo.php
index 0161fbd..630707f 100644
--- a/src/Model/CreateDeliveryInfo.php
+++ b/src/Model/CreateDeliveryInfo.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class CreateDeliveryInfo extends AbstractModel
 {
@@ -15,8 +17,8 @@ class CreateDeliveryInfo extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'expectedDeliveryDate' => [ 'model' => null, 'array' => false ],
-            'transporterCode' => [ 'model' => null, 'array' => false ],
+            'expectedDeliveryDate' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'transporterCode' => [ 'model' => null, 'enum' => Enum\CreateDeliveryInfoTransporterCode::class, 'array' => false ],
         ];
     }
 
@@ -26,7 +28,8 @@ public function getModelDefinition(): array
     public $expectedDeliveryDate;
 
     /**
-     * @var string The transporter code that correlates to the transport used for this replenishment.
+     * @var Enum\CreateDeliveryInfoTransporterCode The transporter code that correlates to the transport used for this
+     * replenishment.
      */
     public $transporterCode;
 }
diff --git a/src/Model/CreateOfferExportRequest.php b/src/Model/CreateOfferExportRequest.php
index af8f553..178d914 100644
--- a/src/Model/CreateOfferExportRequest.php
+++ b/src/Model/CreateOfferExportRequest.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class CreateOfferExportRequest extends AbstractModel
 {
@@ -15,12 +17,12 @@ class CreateOfferExportRequest extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'format' => [ 'model' => null, 'array' => false ],
+            'format' => [ 'model' => null, 'enum' => Enum\CreateOfferExportRequestFormat::class, 'array' => false ],
         ];
     }
 
     /**
-     * @var string The file format in which to return the export.
+     * @var Enum\CreateOfferExportRequestFormat The file format in which to return the export.
      */
     public $format;
 }
diff --git a/src/Model/CreateOfferRequest.php b/src/Model/CreateOfferRequest.php
index 794a80f..93afe35 100644
--- a/src/Model/CreateOfferRequest.php
+++ b/src/Model/CreateOfferRequest.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class CreateOfferRequest extends AbstractModel
 {
@@ -15,14 +17,14 @@ class CreateOfferRequest extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'ean' => [ 'model' => null, 'array' => false ],
-            'condition' => [ 'model' => Condition::class, 'array' => false ],
-            'reference' => [ 'model' => null, 'array' => false ],
-            'onHoldByRetailer' => [ 'model' => null, 'array' => false ],
-            'unknownProductTitle' => [ 'model' => null, 'array' => false ],
-            'pricing' => [ 'model' => Pricing::class, 'array' => false ],
-            'stock' => [ 'model' => StockCreate::class, 'array' => false ],
-            'fulfilment' => [ 'model' => Fulfilment::class, 'array' => false ],
+            'ean' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'condition' => [ 'model' => Condition::class, 'enum' => null, 'array' => false ],
+            'reference' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'onHoldByRetailer' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'unknownProductTitle' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'pricing' => [ 'model' => Pricing::class, 'enum' => null, 'array' => false ],
+            'stock' => [ 'model' => StockCreate::class, 'enum' => null, 'array' => false ],
+            'fulfilment' => [ 'model' => Fulfilment::class, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/CreatePickupAppointment.php b/src/Model/CreatePickupAppointment.php
index a1cce2e..77a21c2 100644
--- a/src/Model/CreatePickupAppointment.php
+++ b/src/Model/CreatePickupAppointment.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class CreatePickupAppointment extends AbstractModel
 {
@@ -15,9 +17,9 @@ class CreatePickupAppointment extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'address' => [ 'model' => CreateAddress::class, 'array' => false ],
-            'pickupTimeSlot' => [ 'model' => CreatePickupTimeSlot::class, 'array' => false ],
-            'commentToTransporter' => [ 'model' => null, 'array' => false ],
+            'address' => [ 'model' => CreateAddress::class, 'enum' => null, 'array' => false ],
+            'pickupTimeSlot' => [ 'model' => CreatePickupTimeSlot::class, 'enum' => null, 'array' => false ],
+            'commentToTransporter' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/CreatePickupTimeSlot.php b/src/Model/CreatePickupTimeSlot.php
index d135099..db6f881 100644
--- a/src/Model/CreatePickupTimeSlot.php
+++ b/src/Model/CreatePickupTimeSlot.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class CreatePickupTimeSlot extends AbstractModel
 {
@@ -15,8 +17,8 @@ class CreatePickupTimeSlot extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'fromDateTime' => [ 'model' => null, 'array' => false ],
-            'untilDateTime' => [ 'model' => null, 'array' => false ],
+            'fromDateTime' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'untilDateTime' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/CreateProductContentSingleRequest.php b/src/Model/CreateProductContentSingleRequest.php
index d81b5c5..bdc9e50 100644
--- a/src/Model/CreateProductContentSingleRequest.php
+++ b/src/Model/CreateProductContentSingleRequest.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class CreateProductContentSingleRequest extends AbstractModel
 {
@@ -15,14 +17,14 @@ class CreateProductContentSingleRequest extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'language' => [ 'model' => null, 'array' => false ],
-            'attributes' => [ 'model' => Attribute::class, 'array' => true ],
-            'assets' => [ 'model' => Asset::class, 'array' => true ],
+            'language' => [ 'model' => null, 'enum' => Enum\CreateProductContentSingleRequestLanguage::class, 'array' => false ],
+            'attributes' => [ 'model' => Attribute::class, 'enum' => null, 'array' => true ],
+            'assets' => [ 'model' => Asset::class, 'enum' => null, 'array' => true ],
         ];
     }
 
     /**
-     * @var string The language in which content is submitted.
+     * @var Enum\CreateProductContentSingleRequestLanguage The language in which content is submitted.
      */
     public $language;
 
diff --git a/src/Model/CreateReplenishmentLine.php b/src/Model/CreateReplenishmentLine.php
index 2b642e9..65b4700 100644
--- a/src/Model/CreateReplenishmentLine.php
+++ b/src/Model/CreateReplenishmentLine.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class CreateReplenishmentLine extends AbstractModel
 {
@@ -15,8 +17,8 @@ class CreateReplenishmentLine extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'ean' => [ 'model' => null, 'array' => false ],
-            'quantity' => [ 'model' => null, 'array' => false ],
+            'ean' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'quantity' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/CreateReplenishmentRequest.php b/src/Model/CreateReplenishmentRequest.php
index 4ce2ea0..e9de9d7 100644
--- a/src/Model/CreateReplenishmentRequest.php
+++ b/src/Model/CreateReplenishmentRequest.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class CreateReplenishmentRequest extends AbstractModel
 {
@@ -15,12 +17,12 @@ class CreateReplenishmentRequest extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'reference' => [ 'model' => null, 'array' => false ],
-            'deliveryInfo' => [ 'model' => CreateDeliveryInfo::class, 'array' => false ],
-            'labelingByBol' => [ 'model' => null, 'array' => false ],
-            'numberOfLoadCarriers' => [ 'model' => null, 'array' => false ],
-            'pickupAppointment' => [ 'model' => CreatePickupAppointment::class, 'array' => false ],
-            'lines' => [ 'model' => CreateReplenishmentLine::class, 'array' => true ],
+            'reference' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'deliveryInfo' => [ 'model' => CreateDeliveryInfo::class, 'enum' => null, 'array' => false ],
+            'labelingByBol' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'numberOfLoadCarriers' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'pickupAppointment' => [ 'model' => CreatePickupAppointment::class, 'enum' => null, 'array' => false ],
+            'lines' => [ 'model' => CreateReplenishmentLine::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/CreateReturnRequest.php b/src/Model/CreateReturnRequest.php
index d7c56ef..9171be9 100644
--- a/src/Model/CreateReturnRequest.php
+++ b/src/Model/CreateReturnRequest.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class CreateReturnRequest extends AbstractModel
 {
@@ -15,9 +17,9 @@ class CreateReturnRequest extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'orderItemId' => [ 'model' => null, 'array' => false ],
-            'quantityReturned' => [ 'model' => null, 'array' => false ],
-            'handlingResult' => [ 'model' => null, 'array' => false ],
+            'orderItemId' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'quantityReturned' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'handlingResult' => [ 'model' => null, 'enum' => Enum\CreateReturnRequestHandlingResult::class, 'array' => false ],
         ];
     }
 
@@ -33,7 +35,7 @@ public function getModelDefinition(): array
     public $quantityReturned;
 
     /**
-     * @var string The handling result requested by the retailer.
+     * @var Enum\CreateReturnRequestHandlingResult The handling result requested by the retailer.
      */
     public $handlingResult;
 }
diff --git a/src/Model/CreateSubscriptionRequest.php b/src/Model/CreateSubscriptionRequest.php
index ab002d2..2a0956c 100644
--- a/src/Model/CreateSubscriptionRequest.php
+++ b/src/Model/CreateSubscriptionRequest.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class CreateSubscriptionRequest extends AbstractModel
 {
@@ -15,8 +17,8 @@ class CreateSubscriptionRequest extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'resources' => [ 'model' => null, 'array' => true ],
-            'url' => [ 'model' => null, 'array' => false ],
+            'resources' => [ 'model' => null, 'enum' => null, 'array' => true ],
+            'url' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/CreateUnpublishedOfferReportRequest.php b/src/Model/CreateUnpublishedOfferReportRequest.php
index 5c06e76..a5cceeb 100644
--- a/src/Model/CreateUnpublishedOfferReportRequest.php
+++ b/src/Model/CreateUnpublishedOfferReportRequest.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class CreateUnpublishedOfferReportRequest extends AbstractModel
 {
@@ -15,12 +17,12 @@ class CreateUnpublishedOfferReportRequest extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'format' => [ 'model' => null, 'array' => false ],
+            'format' => [ 'model' => null, 'enum' => Enum\CreateUnpublishedOfferReportRequestFormat::class, 'array' => false ],
         ];
     }
 
     /**
-     * @var string The file format in which to return the export.
+     * @var Enum\CreateUnpublishedOfferReportRequestFormat The file format in which to return the export.
      */
     public $format;
 }
diff --git a/src/Model/CustomerDetails.php b/src/Model/CustomerDetails.php
index ecd866a..b8b9986 100644
--- a/src/Model/CustomerDetails.php
+++ b/src/Model/CustomerDetails.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class CustomerDetails extends AbstractModel
 {
@@ -15,25 +17,25 @@ class CustomerDetails extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'salutation' => [ 'model' => null, 'array' => false ],
-            'firstName' => [ 'model' => null, 'array' => false ],
-            'surname' => [ 'model' => null, 'array' => false ],
-            'streetName' => [ 'model' => null, 'array' => false ],
-            'houseNumber' => [ 'model' => null, 'array' => false ],
-            'houseNumberExtension' => [ 'model' => null, 'array' => false ],
-            'extraAddressInformation' => [ 'model' => null, 'array' => false ],
-            'zipCode' => [ 'model' => null, 'array' => false ],
-            'city' => [ 'model' => null, 'array' => false ],
-            'countryCode' => [ 'model' => null, 'array' => false ],
-            'email' => [ 'model' => null, 'array' => false ],
-            'deliveryPhoneNumber' => [ 'model' => null, 'array' => false ],
-            'company' => [ 'model' => null, 'array' => false ],
-            'vatNumber' => [ 'model' => null, 'array' => false ],
+            'salutation' => [ 'model' => null, 'enum' => Enum\CustomerDetailsSalutation::class, 'array' => false ],
+            'firstName' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'surname' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'streetName' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'houseNumber' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'houseNumberExtension' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'extraAddressInformation' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'zipCode' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'city' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'countryCode' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'email' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'deliveryPhoneNumber' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'company' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'vatNumber' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
     /**
-     * @var string The salutation of the customer.
+     * @var Enum\CustomerDetailsSalutation The salutation of the customer.
      */
     public $salutation;
 
diff --git a/src/Model/DeliveryDatesResponse.php b/src/Model/DeliveryDatesResponse.php
index 0d7e1f8..62460e6 100644
--- a/src/Model/DeliveryDatesResponse.php
+++ b/src/Model/DeliveryDatesResponse.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class DeliveryDatesResponse extends AbstractModel
 {
@@ -15,7 +17,7 @@ class DeliveryDatesResponse extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'deliveryDates' => [ 'model' => null, 'array' => true ],
+            'deliveryDates' => [ 'model' => null, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/DeliveryInformation.php b/src/Model/DeliveryInformation.php
index 24cfa4d..3502843 100644
--- a/src/Model/DeliveryInformation.php
+++ b/src/Model/DeliveryInformation.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class DeliveryInformation extends AbstractModel
 {
@@ -15,9 +17,9 @@ class DeliveryInformation extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'expectedDeliveryDate' => [ 'model' => null, 'array' => false ],
-            'transporterCode' => [ 'model' => null, 'array' => false ],
-            'destinationWarehouse' => [ 'model' => DestinationWarehouse::class, 'array' => false ],
+            'expectedDeliveryDate' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'transporterCode' => [ 'model' => null, 'enum' => Enum\DeliveryInformationTransporterCode::class, 'array' => false ],
+            'destinationWarehouse' => [ 'model' => DestinationWarehouse::class, 'enum' => null, 'array' => false ],
         ];
     }
 
@@ -27,7 +29,7 @@ public function getModelDefinition(): array
     public $expectedDeliveryDate;
 
     /**
-     * @var string The transporter that will pickup this replenishment.
+     * @var Enum\DeliveryInformationTransporterCode The transporter that will pickup this replenishment.
      */
     public $transporterCode;
 
diff --git a/src/Model/DeliveryOption.php b/src/Model/DeliveryOption.php
index ba82117..7d9c76f 100644
--- a/src/Model/DeliveryOption.php
+++ b/src/Model/DeliveryOption.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class DeliveryOption extends AbstractModel
 {
@@ -15,15 +17,15 @@ class DeliveryOption extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'shippingLabelOfferId' => [ 'model' => null, 'array' => false ],
-            'recommended' => [ 'model' => null, 'array' => false ],
-            'validUntilDate' => [ 'model' => null, 'array' => false ],
-            'transporterCode' => [ 'model' => null, 'array' => false ],
-            'labelType' => [ 'model' => null, 'array' => false ],
-            'labelDisplayName' => [ 'model' => null, 'array' => false ],
-            'labelPrice' => [ 'model' => LabelPrice::class, 'array' => false ],
-            'packageRestrictions' => [ 'model' => PackageRestrictions::class, 'array' => false ],
-            'handoverDetails' => [ 'model' => HandoverDetails::class, 'array' => false ],
+            'shippingLabelOfferId' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'recommended' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'validUntilDate' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'transporterCode' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'labelType' => [ 'model' => null, 'enum' => Enum\DeliveryOptionLabelType::class, 'array' => false ],
+            'labelDisplayName' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'labelPrice' => [ 'model' => LabelPrice::class, 'enum' => null, 'array' => false ],
+            'packageRestrictions' => [ 'model' => PackageRestrictions::class, 'enum' => null, 'array' => false ],
+            'handoverDetails' => [ 'model' => HandoverDetails::class, 'enum' => null, 'array' => false ],
         ];
     }
 
@@ -49,8 +51,9 @@ public function getModelDefinition(): array
     public $transporterCode;
 
     /**
-     * @var string The type of the label, representing the way an item is being transported. MAILBOX is a mailbox
-     * package with delivery scan. MAILBOX_LIGHT is a mailbox package without delivery scan. PARCEL is a normal package.
+     * @var Enum\DeliveryOptionLabelType The type of the label, representing the way an item is being transported.
+     * MAILBOX is a mailbox package with delivery scan. MAILBOX_LIGHT is a mailbox package without delivery scan. PARCEL
+     * is a normal package.
      */
     public $labelType;
 
diff --git a/src/Model/DeliveryOptionsRequest.php b/src/Model/DeliveryOptionsRequest.php
index 0fd57b6..0e9b7ac 100644
--- a/src/Model/DeliveryOptionsRequest.php
+++ b/src/Model/DeliveryOptionsRequest.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class DeliveryOptionsRequest extends AbstractModel
 {
@@ -15,7 +17,7 @@ class DeliveryOptionsRequest extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'orderItems' => [ 'model' => DeliveryOptionsRequestOrderItem::class, 'array' => true ],
+            'orderItems' => [ 'model' => DeliveryOptionsRequestOrderItem::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/DeliveryOptionsRequestOrderItem.php b/src/Model/DeliveryOptionsRequestOrderItem.php
index a0ad065..a5c5278 100644
--- a/src/Model/DeliveryOptionsRequestOrderItem.php
+++ b/src/Model/DeliveryOptionsRequestOrderItem.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class DeliveryOptionsRequestOrderItem extends AbstractModel
 {
@@ -15,7 +17,7 @@ class DeliveryOptionsRequestOrderItem extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'orderItemId' => [ 'model' => null, 'array' => false ],
+            'orderItemId' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/DeliveryOptionsResponse.php b/src/Model/DeliveryOptionsResponse.php
index 8c46043..cc7fe1d 100644
--- a/src/Model/DeliveryOptionsResponse.php
+++ b/src/Model/DeliveryOptionsResponse.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class DeliveryOptionsResponse extends AbstractModel
 {
@@ -15,7 +17,7 @@ class DeliveryOptionsResponse extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'deliveryOptions' => [ 'model' => DeliveryOption::class, 'array' => true ],
+            'deliveryOptions' => [ 'model' => DeliveryOption::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/DestinationWarehouse.php b/src/Model/DestinationWarehouse.php
index 3055f8d..8507d71 100644
--- a/src/Model/DestinationWarehouse.php
+++ b/src/Model/DestinationWarehouse.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class DestinationWarehouse extends AbstractModel
 {
@@ -15,13 +17,13 @@ class DestinationWarehouse extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'streetName' => [ 'model' => null, 'array' => false ],
-            'houseNumber' => [ 'model' => null, 'array' => false ],
-            'houseNumberExtension' => [ 'model' => null, 'array' => false ],
-            'zipCode' => [ 'model' => null, 'array' => false ],
-            'city' => [ 'model' => null, 'array' => false ],
-            'countryCode' => [ 'model' => null, 'array' => false ],
-            'attentionOf' => [ 'model' => null, 'array' => false ],
+            'streetName' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'houseNumber' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'houseNumberExtension' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'zipCode' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'city' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'countryCode' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'attentionOf' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/Details.php b/src/Model/Details.php
index 7bf388e..9e3f3e7 100644
--- a/src/Model/Details.php
+++ b/src/Model/Details.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class Details extends AbstractModel
 {
@@ -15,9 +17,9 @@ class Details extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'period' => [ 'model' => PerformanceIndicatorPeriod::class, 'array' => false ],
-            'score' => [ 'model' => Score::class, 'array' => false ],
-            'norm' => [ 'model' => Norm::class, 'array' => false ],
+            'period' => [ 'model' => PerformanceIndicatorPeriod::class, 'enum' => null, 'array' => false ],
+            'score' => [ 'model' => Score::class, 'enum' => null, 'array' => false ],
+            'norm' => [ 'model' => Norm::class, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/Ean.php b/src/Model/Ean.php
index d378a73..a16e2ad 100644
--- a/src/Model/Ean.php
+++ b/src/Model/Ean.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class Ean extends AbstractModel
 {
@@ -15,7 +17,7 @@ class Ean extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'ean' => [ 'model' => null, 'array' => false ],
+            'ean' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/Enrichment.php b/src/Model/Enrichment.php
index ae5ba63..b47146f 100644
--- a/src/Model/Enrichment.php
+++ b/src/Model/Enrichment.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class Enrichment extends AbstractModel
 {
@@ -15,7 +17,7 @@ class Enrichment extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'status' => [ 'model' => null, 'array' => false ],
+            'status' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/FilterRanges.php b/src/Model/FilterRanges.php
index 1466e72..28068fc 100644
--- a/src/Model/FilterRanges.php
+++ b/src/Model/FilterRanges.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class FilterRanges extends AbstractModel
 {
@@ -15,11 +17,11 @@ class FilterRanges extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'rangeId' => [ 'model' => null, 'array' => false ],
-            'rangeName' => [ 'model' => null, 'array' => false ],
-            'min' => [ 'model' => null, 'array' => false ],
-            'max' => [ 'model' => null, 'array' => false ],
-            'unit' => [ 'model' => null, 'array' => false ],
+            'rangeId' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'rangeName' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'min' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'max' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'unit' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/FilterValues.php b/src/Model/FilterValues.php
index 8495fdd..9a8a8c5 100644
--- a/src/Model/FilterValues.php
+++ b/src/Model/FilterValues.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class FilterValues extends AbstractModel
 {
@@ -15,8 +17,8 @@ class FilterValues extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'filterValueId' => [ 'model' => null, 'array' => false ],
-            'filterValueName' => [ 'model' => null, 'array' => false ],
+            'filterValueId' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'filterValueName' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/Filters.php b/src/Model/Filters.php
index 0425251..9e55bc6 100644
--- a/src/Model/Filters.php
+++ b/src/Model/Filters.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class Filters extends AbstractModel
 {
@@ -15,8 +17,8 @@ class Filters extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'filterName' => [ 'model' => null, 'array' => false ],
-            'filterValues' => [ 'model' => FilterValues::class, 'array' => true ],
+            'filterName' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'filterValues' => [ 'model' => FilterValues::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/Fulfilment.php b/src/Model/Fulfilment.php
index ad7cbc4..b943b46 100644
--- a/src/Model/Fulfilment.php
+++ b/src/Model/Fulfilment.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class Fulfilment extends AbstractModel
 {
@@ -15,19 +17,19 @@ class Fulfilment extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'method' => [ 'model' => null, 'array' => false ],
-            'deliveryCode' => [ 'model' => null, 'array' => false ],
+            'method' => [ 'model' => null, 'enum' => Enum\FulfilmentMethod::class, 'array' => false ],
+            'deliveryCode' => [ 'model' => null, 'enum' => Enum\FulfilmentDeliveryCode::class, 'array' => false ],
         ];
     }
 
     /**
-     * @var string The fulfilment method. Fulfilled by the retailer (FBR) or fulfilled by bol.com (FBB).
+     * @var Enum\FulfilmentMethod The fulfilment method. Fulfilled by the retailer (FBR) or fulfilled by bol.com (FBB).
      */
     public $method;
 
     /**
-     * @var string The delivery promise that applies to this offer. This value will only be used in combination with
-     * fulfilmentMethod 'FBR'.
+     * @var Enum\FulfilmentDeliveryCode The delivery promise that applies to this offer. This value will only be used in
+     * combination with fulfilmentMethod 'FBR'.
      */
     public $deliveryCode;
 }
diff --git a/src/Model/Gpc.php b/src/Model/Gpc.php
index 7ab0f2c..dbe9300 100644
--- a/src/Model/Gpc.php
+++ b/src/Model/Gpc.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class Gpc extends AbstractModel
 {
@@ -15,7 +17,7 @@ class Gpc extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'chunkId' => [ 'model' => null, 'array' => false ],
+            'chunkId' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/HandoverDetails.php b/src/Model/HandoverDetails.php
index f4f6be4..5e9d87d 100644
--- a/src/Model/HandoverDetails.php
+++ b/src/Model/HandoverDetails.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class HandoverDetails extends AbstractModel
 {
@@ -15,10 +17,10 @@ class HandoverDetails extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'meetsCustomerExpectation' => [ 'model' => null, 'array' => false ],
-            'earliestHandoverDateTime' => [ 'model' => null, 'array' => false ],
-            'latestHandoverDateTime' => [ 'model' => null, 'array' => false ],
-            'collectionMethod' => [ 'model' => null, 'array' => false ],
+            'meetsCustomerExpectation' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'earliestHandoverDateTime' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'latestHandoverDateTime' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'collectionMethod' => [ 'model' => null, 'enum' => Enum\HandoverDetailsCollectionMethod::class, 'array' => false ],
         ];
     }
 
@@ -43,7 +45,7 @@ public function getModelDefinition(): array
     public $latestHandoverDateTime;
 
     /**
-     * @var string The type of collection for this parcel.
+     * @var Enum\HandoverDetailsCollectionMethod The type of collection for this parcel.
      */
     public $collectionMethod;
 
diff --git a/src/Model/InvalidReplenishmentLine.php b/src/Model/InvalidReplenishmentLine.php
index c668de0..182ab74 100644
--- a/src/Model/InvalidReplenishmentLine.php
+++ b/src/Model/InvalidReplenishmentLine.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class InvalidReplenishmentLine extends AbstractModel
 {
@@ -15,18 +17,18 @@ class InvalidReplenishmentLine extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'type' => [ 'model' => null, 'array' => false ],
-            'quantityAnnounced' => [ 'model' => null, 'array' => false ],
-            'quantityReceived' => [ 'model' => null, 'array' => false ],
-            'quantityInProgress' => [ 'model' => null, 'array' => false ],
-            'quantityWithGradedState' => [ 'model' => null, 'array' => false ],
-            'quantityWithRegularState' => [ 'model' => null, 'array' => false ],
+            'type' => [ 'model' => null, 'enum' => Enum\InvalidReplenishmentLineType::class, 'array' => false ],
+            'quantityAnnounced' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'quantityReceived' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'quantityInProgress' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'quantityWithGradedState' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'quantityWithRegularState' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
     /**
-     * @var string Type of invalid replenishment line, in case the BSKU and/or EAN cannot be determined for this
-     * replenishment line.
+     * @var Enum\InvalidReplenishmentLineType Type of invalid replenishment line, in case the BSKU and/or EAN cannot be
+     * determined for this replenishment line.
      */
     public $type;
 
diff --git a/src/Model/Inventory.php b/src/Model/Inventory.php
index 5020689..621f03e 100644
--- a/src/Model/Inventory.php
+++ b/src/Model/Inventory.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class Inventory extends AbstractModel
 {
@@ -15,11 +17,11 @@ class Inventory extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'ean' => [ 'model' => null, 'array' => false ],
-            'bsku' => [ 'model' => null, 'array' => false ],
-            'gradedStock' => [ 'model' => null, 'array' => false ],
-            'regularStock' => [ 'model' => null, 'array' => false ],
-            'title' => [ 'model' => null, 'array' => false ],
+            'ean' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'bsku' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'gradedStock' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'regularStock' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'title' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/InventoryResponse.php b/src/Model/InventoryResponse.php
index d5d7eb1..e0d6dbe 100644
--- a/src/Model/InventoryResponse.php
+++ b/src/Model/InventoryResponse.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class InventoryResponse extends AbstractModel
 {
@@ -15,7 +17,7 @@ class InventoryResponse extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'inventory' => [ 'model' => Inventory::class, 'array' => true ],
+            'inventory' => [ 'model' => Inventory::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/InvoiceRequests.php b/src/Model/InvoiceRequests.php
index db6933d..8e8d527 100644
--- a/src/Model/InvoiceRequests.php
+++ b/src/Model/InvoiceRequests.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class InvoiceRequests extends AbstractModel
 {
@@ -15,13 +17,13 @@ class InvoiceRequests extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'shipmentId' => [ 'model' => null, 'array' => false ],
-            'orderId' => [ 'model' => null, 'array' => false ],
-            'customerAccountNumber' => [ 'model' => null, 'array' => false ],
-            'billingDetails' => [ 'model' => BillingDetails::class, 'array' => false ],
-            'products' => [ 'model' => Products::class, 'array' => true ],
-            'status' => [ 'model' => null, 'array' => false ],
-            'statusTransitions' => [ 'model' => StatusTransitions::class, 'array' => true ],
+            'shipmentId' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'orderId' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'customerAccountNumber' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'billingDetails' => [ 'model' => BillingDetails::class, 'enum' => null, 'array' => false ],
+            'products' => [ 'model' => Products::class, 'enum' => null, 'array' => true ],
+            'status' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'statusTransitions' => [ 'model' => StatusTransitions::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/InvoiceRequestsResponse.php b/src/Model/InvoiceRequestsResponse.php
index 38154bd..abe9c74 100644
--- a/src/Model/InvoiceRequestsResponse.php
+++ b/src/Model/InvoiceRequestsResponse.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class InvoiceRequestsResponse extends AbstractModel
 {
@@ -15,7 +17,7 @@ class InvoiceRequestsResponse extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'invoiceRequests' => [ 'model' => InvoiceRequests::class, 'array' => true ],
+            'invoiceRequests' => [ 'model' => InvoiceRequests::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/KeySet.php b/src/Model/KeySet.php
index 3b3db1d..8ed9a9b 100644
--- a/src/Model/KeySet.php
+++ b/src/Model/KeySet.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class KeySet extends AbstractModel
 {
@@ -15,9 +17,9 @@ class KeySet extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'id' => [ 'model' => null, 'array' => false ],
-            'type' => [ 'model' => null, 'array' => false ],
-            'publicKey' => [ 'model' => null, 'array' => false ],
+            'id' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'type' => [ 'model' => null, 'enum' => Enum\KeySetType::class, 'array' => false ],
+            'publicKey' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
@@ -27,7 +29,7 @@ public function getModelDefinition(): array
     public $id;
 
     /**
-     * @var string Key encryption type.
+     * @var Enum\KeySetType Key encryption type.
      */
     public $type;
 
diff --git a/src/Model/KeySetResponse.php b/src/Model/KeySetResponse.php
index 41d6499..70448f0 100644
--- a/src/Model/KeySetResponse.php
+++ b/src/Model/KeySetResponse.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class KeySetResponse extends AbstractModel
 {
@@ -15,7 +17,7 @@ class KeySetResponse extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'signatureKeys' => [ 'model' => KeySet::class, 'array' => true ],
+            'signatureKeys' => [ 'model' => KeySet::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/LabelPrice.php b/src/Model/LabelPrice.php
index bae4069..c3a84f3 100644
--- a/src/Model/LabelPrice.php
+++ b/src/Model/LabelPrice.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class LabelPrice extends AbstractModel
 {
@@ -15,7 +17,7 @@ class LabelPrice extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'totalPrice' => [ 'model' => null, 'array' => false ],
+            'totalPrice' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/Link.php b/src/Model/Link.php
index 9c47b81..c044044 100644
--- a/src/Model/Link.php
+++ b/src/Model/Link.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class Link extends AbstractModel
 {
@@ -15,9 +17,9 @@ class Link extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'rel' => [ 'model' => null, 'array' => false ],
-            'href' => [ 'model' => null, 'array' => false ],
-            'method' => [ 'model' => null, 'array' => false ],
+            'rel' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'href' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'method' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/LoadCarrier.php b/src/Model/LoadCarrier.php
index 4d14dac..5ec33e0 100644
--- a/src/Model/LoadCarrier.php
+++ b/src/Model/LoadCarrier.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class LoadCarrier extends AbstractModel
 {
@@ -15,10 +17,10 @@ class LoadCarrier extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'sscc' => [ 'model' => null, 'array' => false ],
-            'transportLabelTrackAndTrace' => [ 'model' => null, 'array' => false ],
-            'transportState' => [ 'model' => null, 'array' => false ],
-            'transportStateUpdateDateTime' => [ 'model' => null, 'array' => false ],
+            'sscc' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'transportLabelTrackAndTrace' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'transportState' => [ 'model' => null, 'enum' => Enum\LoadCarrierTransportState::class, 'array' => false ],
+            'transportStateUpdateDateTime' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
@@ -33,7 +35,7 @@ public function getModelDefinition(): array
     public $transportLabelTrackAndTrace;
 
     /**
-     * @var string The current state of the transport for this load carrier.
+     * @var Enum\LoadCarrierTransportState The current state of the transport for this load carrier.
      */
     public $transportState;
 
diff --git a/src/Model/Norm.php b/src/Model/Norm.php
index 9614dd8..63bdf84 100644
--- a/src/Model/Norm.php
+++ b/src/Model/Norm.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class Norm extends AbstractModel
 {
@@ -15,13 +17,13 @@ class Norm extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'condition' => [ 'model' => null, 'array' => false ],
-            'value' => [ 'model' => null, 'array' => false ],
+            'condition' => [ 'model' => null, 'enum' => Enum\NormCondition::class, 'array' => false ],
+            'value' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
     /**
-     * @var string Condition norm for this indicator.
+     * @var Enum\NormCondition Condition norm for this indicator.
      */
     public $condition;
 
diff --git a/src/Model/NotPublishableReason.php b/src/Model/NotPublishableReason.php
index d9aab1b..0021013 100644
--- a/src/Model/NotPublishableReason.php
+++ b/src/Model/NotPublishableReason.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class NotPublishableReason extends AbstractModel
 {
@@ -15,8 +17,8 @@ class NotPublishableReason extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'code' => [ 'model' => null, 'array' => false ],
-            'description' => [ 'model' => null, 'array' => false ],
+            'code' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'description' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/Offer.php b/src/Model/Offer.php
index f652437..6adaab6 100644
--- a/src/Model/Offer.php
+++ b/src/Model/Offer.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class Offer extends AbstractModel
 {
@@ -15,16 +17,16 @@ class Offer extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'offerId' => [ 'model' => null, 'array' => false ],
-            'retailerId' => [ 'model' => null, 'array' => false ],
-            'countryCode' => [ 'model' => null, 'array' => false ],
-            'bestOffer' => [ 'model' => null, 'array' => false ],
-            'price' => [ 'model' => null, 'array' => false ],
-            'fulfilmentMethod' => [ 'model' => null, 'array' => false ],
-            'condition' => [ 'model' => null, 'array' => false ],
-            'ultimateOrderTime' => [ 'model' => null, 'array' => false ],
-            'minDeliveryDate' => [ 'model' => null, 'array' => false ],
-            'maxDeliveryDate' => [ 'model' => null, 'array' => false ],
+            'offerId' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'retailerId' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'countryCode' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'bestOffer' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'price' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'fulfilmentMethod' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'condition' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'ultimateOrderTime' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'minDeliveryDate' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'maxDeliveryDate' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/OfferInsight.php b/src/Model/OfferInsight.php
index 75069c0..b72ea7a 100644
--- a/src/Model/OfferInsight.php
+++ b/src/Model/OfferInsight.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class OfferInsight extends AbstractModel
 {
@@ -15,11 +17,11 @@ class OfferInsight extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'name' => [ 'model' => null, 'array' => false ],
-            'type' => [ 'model' => null, 'array' => false ],
-            'total' => [ 'model' => null, 'array' => false ],
-            'countries' => [ 'model' => OfferInsightsCountry::class, 'array' => true ],
-            'periods' => [ 'model' => Periods::class, 'array' => true ],
+            'name' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'type' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'total' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'countries' => [ 'model' => OfferInsightsCountry::class, 'enum' => null, 'array' => true ],
+            'periods' => [ 'model' => Periods::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/OfferInsights.php b/src/Model/OfferInsights.php
index 98e9dd4..10a0da0 100644
--- a/src/Model/OfferInsights.php
+++ b/src/Model/OfferInsights.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class OfferInsights extends AbstractModel
 {
@@ -15,7 +17,7 @@ class OfferInsights extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'offerInsights' => [ 'model' => OfferInsight::class, 'array' => true ],
+            'offerInsights' => [ 'model' => OfferInsight::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/OfferInsightsCountry.php b/src/Model/OfferInsightsCountry.php
index a5eef5f..46a395e 100644
--- a/src/Model/OfferInsightsCountry.php
+++ b/src/Model/OfferInsightsCountry.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class OfferInsightsCountry extends AbstractModel
 {
@@ -15,8 +17,8 @@ class OfferInsightsCountry extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'countryCode' => [ 'model' => null, 'array' => false ],
-            'value' => [ 'model' => null, 'array' => false ],
+            'countryCode' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'value' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/OfferInsightsPeriod.php b/src/Model/OfferInsightsPeriod.php
index 8ad4364..94cc63d 100644
--- a/src/Model/OfferInsightsPeriod.php
+++ b/src/Model/OfferInsightsPeriod.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class OfferInsightsPeriod extends AbstractModel
 {
@@ -15,10 +17,10 @@ class OfferInsightsPeriod extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'day' => [ 'model' => null, 'array' => false ],
-            'week' => [ 'model' => null, 'array' => false ],
-            'month' => [ 'model' => null, 'array' => false ],
-            'year' => [ 'model' => null, 'array' => false ],
+            'day' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'week' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'month' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'year' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/OffersCountryCode.php b/src/Model/OffersCountryCode.php
index 07075f6..95c8371 100644
--- a/src/Model/OffersCountryCode.php
+++ b/src/Model/OffersCountryCode.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class OffersCountryCode extends AbstractModel
 {
@@ -15,7 +17,7 @@ class OffersCountryCode extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'countryCode' => [ 'model' => null, 'array' => false ],
+            'countryCode' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/Order.php b/src/Model/Order.php
index f478d2e..4293969 100644
--- a/src/Model/Order.php
+++ b/src/Model/Order.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class Order extends AbstractModel
 {
@@ -15,12 +17,12 @@ class Order extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'orderId' => [ 'model' => null, 'array' => false ],
-            'pickupPoint' => [ 'model' => null, 'array' => false ],
-            'orderPlacedDateTime' => [ 'model' => null, 'array' => false ],
-            'shipmentDetails' => [ 'model' => ShipmentDetails::class, 'array' => false ],
-            'billingDetails' => [ 'model' => BillingDetails::class, 'array' => false ],
-            'orderItems' => [ 'model' => OrderOrderItem::class, 'array' => true ],
+            'orderId' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'pickupPoint' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'orderPlacedDateTime' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'shipmentDetails' => [ 'model' => ShipmentDetails::class, 'enum' => null, 'array' => false ],
+            'billingDetails' => [ 'model' => BillingDetails::class, 'enum' => null, 'array' => false ],
+            'orderItems' => [ 'model' => OrderOrderItem::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/OrderFulfilment.php b/src/Model/OrderFulfilment.php
index 5e8e68f..be00cd6 100644
--- a/src/Model/OrderFulfilment.php
+++ b/src/Model/OrderFulfilment.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class OrderFulfilment extends AbstractModel
 {
@@ -15,12 +17,12 @@ class OrderFulfilment extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'method' => [ 'model' => null, 'array' => false ],
-            'distributionParty' => [ 'model' => null, 'array' => false ],
-            'latestDeliveryDate' => [ 'model' => null, 'array' => false ],
-            'exactDeliveryDate' => [ 'model' => null, 'array' => false ],
-            'expiryDate' => [ 'model' => null, 'array' => false ],
-            'timeFrameType' => [ 'model' => null, 'array' => false ],
+            'method' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'distributionParty' => [ 'model' => null, 'enum' => Enum\OrderFulfilmentDistributionParty::class, 'array' => false ],
+            'latestDeliveryDate' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'exactDeliveryDate' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'expiryDate' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'timeFrameType' => [ 'model' => null, 'enum' => Enum\OrderFulfilmentTimeFrameType::class, 'array' => false ],
         ];
     }
 
@@ -30,7 +32,8 @@ public function getModelDefinition(): array
     public $method;
 
     /**
-     * @var string The party that manages the distribution, either bol.com or the retailer itself.
+     * @var Enum\OrderFulfilmentDistributionParty The party that manages the distribution, either bol.com or the
+     * retailer itself.
      */
     public $distributionParty;
 
@@ -54,7 +57,7 @@ public function getModelDefinition(): array
     public $expiryDate;
 
     /**
-     * @var string Delivery option selected by the customer.
+     * @var Enum\OrderFulfilmentTimeFrameType Delivery option selected by the customer.
      */
     public $timeFrameType;
 }
diff --git a/src/Model/OrderItem.php b/src/Model/OrderItem.php
index 4dd2b81..ab12c4f 100644
--- a/src/Model/OrderItem.php
+++ b/src/Model/OrderItem.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class OrderItem extends AbstractModel
 {
@@ -15,7 +17,7 @@ class OrderItem extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'orderItemId' => [ 'model' => null, 'array' => false ],
+            'orderItemId' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/OrderItemCancellation.php b/src/Model/OrderItemCancellation.php
index cae728e..76065aa 100644
--- a/src/Model/OrderItemCancellation.php
+++ b/src/Model/OrderItemCancellation.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class OrderItemCancellation extends AbstractModel
 {
@@ -15,8 +17,8 @@ class OrderItemCancellation extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'orderItemId' => [ 'model' => null, 'array' => false ],
-            'reasonCode' => [ 'model' => null, 'array' => false ],
+            'orderItemId' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'reasonCode' => [ 'model' => null, 'enum' => Enum\OrderItemCancellationReasonCode::class, 'array' => false ],
         ];
     }
 
@@ -27,7 +29,7 @@ public function getModelDefinition(): array
     public $orderItemId;
 
     /**
-     * @var string The code representing the reason for cancellation of this item.
+     * @var Enum\OrderItemCancellationReasonCode The code representing the reason for cancellation of this item.
      */
     public $reasonCode;
 }
diff --git a/src/Model/OrderOffer.php b/src/Model/OrderOffer.php
index 651b6d3..052aa34 100644
--- a/src/Model/OrderOffer.php
+++ b/src/Model/OrderOffer.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class OrderOffer extends AbstractModel
 {
@@ -15,8 +17,8 @@ class OrderOffer extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'offerId' => [ 'model' => null, 'array' => false ],
-            'reference' => [ 'model' => null, 'array' => false ],
+            'offerId' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'reference' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/OrderOrderItem.php b/src/Model/OrderOrderItem.php
index 0800a5f..5e0c481 100644
--- a/src/Model/OrderOrderItem.php
+++ b/src/Model/OrderOrderItem.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class OrderOrderItem extends AbstractModel
 {
@@ -15,18 +17,18 @@ class OrderOrderItem extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'orderItemId' => [ 'model' => null, 'array' => false ],
-            'cancellationRequest' => [ 'model' => null, 'array' => false ],
-            'fulfilment' => [ 'model' => OrderFulfilment::class, 'array' => false ],
-            'offer' => [ 'model' => OrderOffer::class, 'array' => false ],
-            'product' => [ 'model' => OrderProduct::class, 'array' => false ],
-            'quantity' => [ 'model' => null, 'array' => false ],
-            'quantityShipped' => [ 'model' => null, 'array' => false ],
-            'quantityCancelled' => [ 'model' => null, 'array' => false ],
-            'unitPrice' => [ 'model' => null, 'array' => false ],
-            'commission' => [ 'model' => null, 'array' => false ],
-            'additionalServices' => [ 'model' => AdditionalService::class, 'array' => true ],
-            'latestChangedDateTime' => [ 'model' => null, 'array' => false ],
+            'orderItemId' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'cancellationRequest' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'fulfilment' => [ 'model' => OrderFulfilment::class, 'enum' => null, 'array' => false ],
+            'offer' => [ 'model' => OrderOffer::class, 'enum' => null, 'array' => false ],
+            'product' => [ 'model' => OrderProduct::class, 'enum' => null, 'array' => false ],
+            'quantity' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'quantityShipped' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'quantityCancelled' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'unitPrice' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'commission' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'additionalServices' => [ 'model' => AdditionalService::class, 'enum' => null, 'array' => true ],
+            'latestChangedDateTime' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/OrderProduct.php b/src/Model/OrderProduct.php
index 0167515..d4868bb 100644
--- a/src/Model/OrderProduct.php
+++ b/src/Model/OrderProduct.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class OrderProduct extends AbstractModel
 {
@@ -15,8 +17,8 @@ class OrderProduct extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'ean' => [ 'model' => null, 'array' => false ],
-            'title' => [ 'model' => null, 'array' => false ],
+            'ean' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'title' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/PackageRestrictions.php b/src/Model/PackageRestrictions.php
index 914f401..ea56171 100644
--- a/src/Model/PackageRestrictions.php
+++ b/src/Model/PackageRestrictions.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class PackageRestrictions extends AbstractModel
 {
@@ -15,8 +17,8 @@ class PackageRestrictions extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'maxWeight' => [ 'model' => null, 'array' => false ],
-            'maxDimensions' => [ 'model' => null, 'array' => false ],
+            'maxWeight' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'maxDimensions' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/Party.php b/src/Model/Party.php
index c522c5f..374ef6e 100644
--- a/src/Model/Party.php
+++ b/src/Model/Party.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class Party extends AbstractModel
 {
@@ -15,9 +17,9 @@ class Party extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'name' => [ 'model' => null, 'array' => false ],
-            'type' => [ 'model' => null, 'array' => false ],
-            'role' => [ 'model' => null, 'array' => false ],
+            'name' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'type' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'role' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/PerformanceIndicator.php b/src/Model/PerformanceIndicator.php
index 70e5733..d0df58b 100644
--- a/src/Model/PerformanceIndicator.php
+++ b/src/Model/PerformanceIndicator.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class PerformanceIndicator extends AbstractModel
 {
@@ -15,19 +17,19 @@ class PerformanceIndicator extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'name' => [ 'model' => null, 'array' => false ],
-            'type' => [ 'model' => null, 'array' => false ],
-            'details' => [ 'model' => Details::class, 'array' => false ],
+            'name' => [ 'model' => null, 'enum' => Enum\PerformanceIndicatorName::class, 'array' => false ],
+            'type' => [ 'model' => null, 'enum' => Enum\PerformanceIndicatorType::class, 'array' => false ],
+            'details' => [ 'model' => Details::class, 'enum' => null, 'array' => false ],
         ];
     }
 
     /**
-     * @var string Indicator name.
+     * @var Enum\PerformanceIndicatorName Indicator name.
      */
     public $name;
 
     /**
-     * @var string Interpretation of the data that applies to this measurement.
+     * @var Enum\PerformanceIndicatorType Interpretation of the data that applies to this measurement.
      */
     public $type;
 
diff --git a/src/Model/PerformanceIndicatorPeriod.php b/src/Model/PerformanceIndicatorPeriod.php
index 16a6194..233a5e1 100644
--- a/src/Model/PerformanceIndicatorPeriod.php
+++ b/src/Model/PerformanceIndicatorPeriod.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class PerformanceIndicatorPeriod extends AbstractModel
 {
@@ -15,8 +17,8 @@ class PerformanceIndicatorPeriod extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'week' => [ 'model' => null, 'array' => false ],
-            'year' => [ 'model' => null, 'array' => false ],
+            'week' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'year' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/PerformanceIndicators.php b/src/Model/PerformanceIndicators.php
index c77431e..4d63a4a 100644
--- a/src/Model/PerformanceIndicators.php
+++ b/src/Model/PerformanceIndicators.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class PerformanceIndicators extends AbstractModel
 {
@@ -15,7 +17,7 @@ class PerformanceIndicators extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'performanceIndicators' => [ 'model' => PerformanceIndicator::class, 'array' => true ],
+            'performanceIndicators' => [ 'model' => PerformanceIndicator::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/Periods.php b/src/Model/Periods.php
index 70b6b36..3615fd2 100644
--- a/src/Model/Periods.php
+++ b/src/Model/Periods.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class Periods extends AbstractModel
 {
@@ -15,9 +17,9 @@ class Periods extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'period' => [ 'model' => OfferInsightsPeriod::class, 'array' => false ],
-            'total' => [ 'model' => null, 'array' => false ],
-            'countries' => [ 'model' => OfferInsightsCountry::class, 'array' => true ],
+            'period' => [ 'model' => OfferInsightsPeriod::class, 'enum' => null, 'array' => false ],
+            'total' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'countries' => [ 'model' => OfferInsightsCountry::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/PickupAppointment.php b/src/Model/PickupAppointment.php
index 54d7e15..33a01da 100644
--- a/src/Model/PickupAppointment.php
+++ b/src/Model/PickupAppointment.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class PickupAppointment extends AbstractModel
 {
@@ -15,11 +17,11 @@ class PickupAppointment extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'commentToTransporter' => [ 'model' => null, 'array' => false ],
-            'address' => [ 'model' => Address::class, 'array' => false ],
-            'pickupTimeSlot' => [ 'model' => ReplenishmentPickupTimeSlot::class, 'array' => false ],
-            'pickupDateTime' => [ 'model' => null, 'array' => false ],
-            'cancellationReason' => [ 'model' => null, 'array' => false ],
+            'commentToTransporter' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'address' => [ 'model' => Address::class, 'enum' => null, 'array' => false ],
+            'pickupTimeSlot' => [ 'model' => ReplenishmentPickupTimeSlot::class, 'enum' => null, 'array' => false ],
+            'pickupDateTime' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'cancellationReason' => [ 'model' => null, 'enum' => Enum\PickupAppointmentCancellationReason::class, 'array' => false ],
         ];
     }
 
@@ -44,7 +46,8 @@ public function getModelDefinition(): array
     public $pickupDateTime;
 
     /**
-     * @var string In case of a pickup cancellation this field indicates the reason for cancelling this pickup.
+     * @var Enum\PickupAppointmentCancellationReason In case of a pickup cancellation this field indicates the reason
+     * for cancelling this pickup.
      */
     public $cancellationReason;
 
diff --git a/src/Model/PickupTimeSlot.php b/src/Model/PickupTimeSlot.php
index 0db0527..13473ae 100644
--- a/src/Model/PickupTimeSlot.php
+++ b/src/Model/PickupTimeSlot.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class PickupTimeSlot extends AbstractModel
 {
@@ -15,8 +17,8 @@ class PickupTimeSlot extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'fromDateTime' => [ 'model' => null, 'array' => false ],
-            'untilDateTime' => [ 'model' => null, 'array' => false ],
+            'fromDateTime' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'untilDateTime' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/PickupTimeSlotsAddress.php b/src/Model/PickupTimeSlotsAddress.php
index 6f87eaa..ad5991d 100644
--- a/src/Model/PickupTimeSlotsAddress.php
+++ b/src/Model/PickupTimeSlotsAddress.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class PickupTimeSlotsAddress extends AbstractModel
 {
@@ -15,12 +17,12 @@ class PickupTimeSlotsAddress extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'streetName' => [ 'model' => null, 'array' => false ],
-            'houseNumber' => [ 'model' => null, 'array' => false ],
-            'houseNumberExtension' => [ 'model' => null, 'array' => false ],
-            'zipCode' => [ 'model' => null, 'array' => false ],
-            'city' => [ 'model' => null, 'array' => false ],
-            'countryCode' => [ 'model' => null, 'array' => false ],
+            'streetName' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'houseNumber' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'houseNumberExtension' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'zipCode' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'city' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'countryCode' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/PickupTimeSlotsRequest.php b/src/Model/PickupTimeSlotsRequest.php
index ba4fc80..d75f904 100644
--- a/src/Model/PickupTimeSlotsRequest.php
+++ b/src/Model/PickupTimeSlotsRequest.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class PickupTimeSlotsRequest extends AbstractModel
 {
@@ -15,8 +17,8 @@ class PickupTimeSlotsRequest extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'address' => [ 'model' => PickupTimeSlotsAddress::class, 'array' => false ],
-            'numberOfLoadCarriers' => [ 'model' => null, 'array' => false ],
+            'address' => [ 'model' => PickupTimeSlotsAddress::class, 'enum' => null, 'array' => false ],
+            'numberOfLoadCarriers' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/PickupTimeSlotsResponse.php b/src/Model/PickupTimeSlotsResponse.php
index c0c08ce..540c7ec 100644
--- a/src/Model/PickupTimeSlotsResponse.php
+++ b/src/Model/PickupTimeSlotsResponse.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class PickupTimeSlotsResponse extends AbstractModel
 {
@@ -15,7 +17,7 @@ class PickupTimeSlotsResponse extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'timeSlots' => [ 'model' => PickupTimeSlot::class, 'array' => true ],
+            'timeSlots' => [ 'model' => PickupTimeSlot::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/PriceStarBoundaries.php b/src/Model/PriceStarBoundaries.php
index 369c5db..f69d4d7 100644
--- a/src/Model/PriceStarBoundaries.php
+++ b/src/Model/PriceStarBoundaries.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class PriceStarBoundaries extends AbstractModel
 {
@@ -15,8 +17,8 @@ class PriceStarBoundaries extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'lastModifiedDateTime' => [ 'model' => null, 'array' => false ],
-            'priceStarBoundaryLevels' => [ 'model' => PriceStarBoundaryLevels::class, 'array' => true ],
+            'lastModifiedDateTime' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'priceStarBoundaryLevels' => [ 'model' => PriceStarBoundaryLevels::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/PriceStarBoundaryLevels.php b/src/Model/PriceStarBoundaryLevels.php
index 85fb80e..3a4d0c1 100644
--- a/src/Model/PriceStarBoundaryLevels.php
+++ b/src/Model/PriceStarBoundaryLevels.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class PriceStarBoundaryLevels extends AbstractModel
 {
@@ -15,8 +17,8 @@ class PriceStarBoundaryLevels extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'level' => [ 'model' => null, 'array' => false ],
-            'boundaryPrice' => [ 'model' => null, 'array' => false ],
+            'level' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'boundaryPrice' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/Pricing.php b/src/Model/Pricing.php
index 043c84d..77ccb05 100644
--- a/src/Model/Pricing.php
+++ b/src/Model/Pricing.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class Pricing extends AbstractModel
 {
@@ -15,7 +17,7 @@ class Pricing extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'bundlePrices' => [ 'model' => BundlePrice::class, 'array' => true ],
+            'bundlePrices' => [ 'model' => BundlePrice::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/Problem.php b/src/Model/Problem.php
index 02ddc33..ef4d73f 100644
--- a/src/Model/Problem.php
+++ b/src/Model/Problem.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class Problem extends AbstractModel
 {
@@ -15,14 +17,14 @@ class Problem extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'instance' => [ 'model' => null, 'array' => false ],
-            'type' => [ 'model' => null, 'array' => false ],
-            'host' => [ 'model' => null, 'array' => false ],
-            'causedBy' => [ 'model' => Problem::class, 'array' => false ],
-            'title' => [ 'model' => null, 'array' => false ],
-            'status' => [ 'model' => null, 'array' => false ],
-            'violations' => [ 'model' => Violation::class, 'array' => true ],
-            'detail' => [ 'model' => null, 'array' => false ],
+            'instance' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'type' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'host' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'causedBy' => [ 'model' => Problem::class, 'enum' => null, 'array' => false ],
+            'title' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'status' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'violations' => [ 'model' => Violation::class, 'enum' => null, 'array' => true ],
+            'detail' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/ProcessStatus.php b/src/Model/ProcessStatus.php
index 75f8aa1..47cd73c 100644
--- a/src/Model/ProcessStatus.php
+++ b/src/Model/ProcessStatus.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ProcessStatus extends AbstractModel
 {
@@ -15,14 +17,14 @@ class ProcessStatus extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'processStatusId' => [ 'model' => null, 'array' => false ],
-            'entityId' => [ 'model' => null, 'array' => false ],
-            'eventType' => [ 'model' => null, 'array' => false ],
-            'description' => [ 'model' => null, 'array' => false ],
-            'status' => [ 'model' => null, 'array' => false ],
-            'errorMessage' => [ 'model' => null, 'array' => false ],
-            'createTimestamp' => [ 'model' => null, 'array' => false ],
-            'links' => [ 'model' => Link::class, 'array' => true ],
+            'processStatusId' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'entityId' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'eventType' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'description' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'status' => [ 'model' => null, 'enum' => Enum\ProcessStatusStatus::class, 'array' => false ],
+            'errorMessage' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'createTimestamp' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'links' => [ 'model' => Link::class, 'enum' => null, 'array' => true ],
         ];
     }
 
@@ -48,7 +50,7 @@ public function getModelDefinition(): array
     public $description;
 
     /**
-     * @var string Status of the action being processed.
+     * @var Enum\ProcessStatusStatus Status of the action being processed.
      */
     public $status;
 
diff --git a/src/Model/ProcessStatusId.php b/src/Model/ProcessStatusId.php
index f7421c5..585e1f9 100644
--- a/src/Model/ProcessStatusId.php
+++ b/src/Model/ProcessStatusId.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ProcessStatusId extends AbstractModel
 {
@@ -15,7 +17,7 @@ class ProcessStatusId extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'processStatusId' => [ 'model' => null, 'array' => false ],
+            'processStatusId' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/ProcessStatusResponse.php b/src/Model/ProcessStatusResponse.php
index ea4fb20..99bd0a0 100644
--- a/src/Model/ProcessStatusResponse.php
+++ b/src/Model/ProcessStatusResponse.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ProcessStatusResponse extends AbstractModel
 {
@@ -15,7 +17,7 @@ class ProcessStatusResponse extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'processStatuses' => [ 'model' => ProcessStatus::class, 'array' => true ],
+            'processStatuses' => [ 'model' => ProcessStatus::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/Product.php b/src/Model/Product.php
index fd90c91..1eaff06 100644
--- a/src/Model/Product.php
+++ b/src/Model/Product.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class Product extends AbstractModel
 {
@@ -15,9 +17,9 @@ class Product extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'ean' => [ 'model' => null, 'array' => false ],
-            'relevanceScores' => [ 'model' => RelevanceScore::class, 'array' => true ],
-            'maximumPrice' => [ 'model' => null, 'array' => false ],
+            'ean' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'relevanceScores' => [ 'model' => RelevanceScore::class, 'enum' => null, 'array' => true ],
+            'maximumPrice' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/ProductAssets.php b/src/Model/ProductAssets.php
index f94ac87..8111536 100644
--- a/src/Model/ProductAssets.php
+++ b/src/Model/ProductAssets.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ProductAssets extends AbstractModel
 {
@@ -15,14 +17,14 @@ class ProductAssets extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'usage' => [ 'model' => null, 'array' => false ],
-            'order' => [ 'model' => null, 'array' => false ],
-            'variants' => [ 'model' => ProductAssetsVariants::class, 'array' => true ],
+            'usage' => [ 'model' => null, 'enum' => Enum\ProductAssetsUsage::class, 'array' => false ],
+            'order' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'variants' => [ 'model' => ProductAssetsVariants::class, 'enum' => null, 'array' => true ],
         ];
     }
 
     /**
-     * @var string Type of the asset being used for.
+     * @var Enum\ProductAssetsUsage Type of the asset being used for.
      */
     public $usage;
 
diff --git a/src/Model/ProductAssetsResponse.php b/src/Model/ProductAssetsResponse.php
index 47bf20d..00eaa1f 100644
--- a/src/Model/ProductAssetsResponse.php
+++ b/src/Model/ProductAssetsResponse.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ProductAssetsResponse extends AbstractModel
 {
@@ -15,7 +17,7 @@ class ProductAssetsResponse extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'assets' => [ 'model' => ProductAssets::class, 'array' => true ],
+            'assets' => [ 'model' => ProductAssets::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/ProductAssetsVariants.php b/src/Model/ProductAssetsVariants.php
index 7c2695f..5551f9f 100644
--- a/src/Model/ProductAssetsVariants.php
+++ b/src/Model/ProductAssetsVariants.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ProductAssetsVariants extends AbstractModel
 {
@@ -15,16 +17,16 @@ class ProductAssetsVariants extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'size' => [ 'model' => null, 'array' => false ],
-            'width' => [ 'model' => null, 'array' => false ],
-            'height' => [ 'model' => null, 'array' => false ],
-            'mimeType' => [ 'model' => null, 'array' => false ],
-            'url' => [ 'model' => null, 'array' => false ],
+            'size' => [ 'model' => null, 'enum' => Enum\ProductAssetsVariantsSize::class, 'array' => false ],
+            'width' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'height' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'mimeType' => [ 'model' => null, 'enum' => Enum\ProductAssetsVariantsMimeType::class, 'array' => false ],
+            'url' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
     /**
-     * @var string The name of the size of the asset, if the asset is an image.
+     * @var Enum\ProductAssetsVariantsSize The name of the size of the asset, if the asset is an image.
      */
     public $size;
 
@@ -39,7 +41,7 @@ public function getModelDefinition(): array
     public $height;
 
     /**
-     * @var string The mime type of the asset.
+     * @var Enum\ProductAssetsVariantsMimeType The mime type of the asset.
      */
     public $mimeType;
 
diff --git a/src/Model/ProductDestination.php b/src/Model/ProductDestination.php
index 7d60bbf..7f8d372 100644
--- a/src/Model/ProductDestination.php
+++ b/src/Model/ProductDestination.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ProductDestination extends AbstractModel
 {
@@ -15,8 +17,8 @@ class ProductDestination extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'destinationWarehouse' => [ 'model' => ProductDestinationWarehouse::class, 'array' => false ],
-            'eans' => [ 'model' => Ean::class, 'array' => true ],
+            'destinationWarehouse' => [ 'model' => ProductDestinationWarehouse::class, 'enum' => null, 'array' => false ],
+            'eans' => [ 'model' => Ean::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/ProductDestinationAddress.php b/src/Model/ProductDestinationAddress.php
index 604709f..e9b2680 100644
--- a/src/Model/ProductDestinationAddress.php
+++ b/src/Model/ProductDestinationAddress.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ProductDestinationAddress extends AbstractModel
 {
@@ -15,13 +17,13 @@ class ProductDestinationAddress extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'streetName' => [ 'model' => null, 'array' => false ],
-            'houseNumber' => [ 'model' => null, 'array' => false ],
-            'zipCode' => [ 'model' => null, 'array' => false ],
-            'city' => [ 'model' => null, 'array' => false ],
-            'countryCode' => [ 'model' => null, 'array' => false ],
-            'attentionOf' => [ 'model' => null, 'array' => false ],
-            'houseNumberExtension' => [ 'model' => null, 'array' => false ],
+            'streetName' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'houseNumber' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'zipCode' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'city' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'countryCode' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'attentionOf' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'houseNumberExtension' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/ProductDestinationWarehouse.php b/src/Model/ProductDestinationWarehouse.php
index f44dcf7..49db9a0 100644
--- a/src/Model/ProductDestinationWarehouse.php
+++ b/src/Model/ProductDestinationWarehouse.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ProductDestinationWarehouse extends AbstractModel
 {
@@ -15,7 +17,7 @@ class ProductDestinationWarehouse extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'address' => [ 'model' => ProductDestinationAddress::class, 'array' => false ],
+            'address' => [ 'model' => ProductDestinationAddress::class, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/ProductDestinationsResponse.php b/src/Model/ProductDestinationsResponse.php
index 9481cf4..ed47dc3 100644
--- a/src/Model/ProductDestinationsResponse.php
+++ b/src/Model/ProductDestinationsResponse.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ProductDestinationsResponse extends AbstractModel
 {
@@ -15,7 +17,7 @@ class ProductDestinationsResponse extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'productDestinations' => [ 'model' => ProductDestination::class, 'array' => true ],
+            'productDestinations' => [ 'model' => ProductDestination::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/ProductIdsEan.php b/src/Model/ProductIdsEan.php
index 8abe00b..f542609 100644
--- a/src/Model/ProductIdsEan.php
+++ b/src/Model/ProductIdsEan.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ProductIdsEan extends AbstractModel
 {
@@ -15,7 +17,7 @@ class ProductIdsEan extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'ean' => [ 'model' => null, 'array' => false ],
+            'ean' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/ProductIdsResponse.php b/src/Model/ProductIdsResponse.php
index 6294589..e5e2adc 100644
--- a/src/Model/ProductIdsResponse.php
+++ b/src/Model/ProductIdsResponse.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ProductIdsResponse extends AbstractModel
 {
@@ -15,8 +17,8 @@ class ProductIdsResponse extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'bolProductId' => [ 'model' => null, 'array' => false ],
-            'eans' => [ 'model' => ProductIdsEan::class, 'array' => true ],
+            'bolProductId' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'eans' => [ 'model' => ProductIdsEan::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/ProductLabelsProduct.php b/src/Model/ProductLabelsProduct.php
index 1cafe5e..9588ced 100644
--- a/src/Model/ProductLabelsProduct.php
+++ b/src/Model/ProductLabelsProduct.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ProductLabelsProduct extends AbstractModel
 {
@@ -15,8 +17,8 @@ class ProductLabelsProduct extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'ean' => [ 'model' => null, 'array' => false ],
-            'quantity' => [ 'model' => null, 'array' => false ],
+            'ean' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'quantity' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/ProductLabelsRequest.php b/src/Model/ProductLabelsRequest.php
index 8953a5f..a561fa7 100644
--- a/src/Model/ProductLabelsRequest.php
+++ b/src/Model/ProductLabelsRequest.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ProductLabelsRequest extends AbstractModel
 {
@@ -15,13 +17,13 @@ class ProductLabelsRequest extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'labelFormat' => [ 'model' => null, 'array' => false ],
-            'products' => [ 'model' => ProductLabelsProduct::class, 'array' => true ],
+            'labelFormat' => [ 'model' => null, 'enum' => Enum\ProductLabelsRequestLabelFormat::class, 'array' => false ],
+            'products' => [ 'model' => ProductLabelsProduct::class, 'enum' => null, 'array' => true ],
         ];
     }
 
     /**
-     * @var string The printer format to create labels for.
+     * @var Enum\ProductLabelsRequestLabelFormat The printer format to create labels for.
      */
     public $labelFormat;
 
diff --git a/src/Model/ProductListFilterRange.php b/src/Model/ProductListFilterRange.php
index 3756f2e..62d7638 100644
--- a/src/Model/ProductListFilterRange.php
+++ b/src/Model/ProductListFilterRange.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ProductListFilterRange extends AbstractModel
 {
@@ -15,9 +17,9 @@ class ProductListFilterRange extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'rangeId' => [ 'model' => null, 'array' => false ],
-            'min' => [ 'model' => null, 'array' => false ],
-            'max' => [ 'model' => null, 'array' => false ],
+            'rangeId' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'min' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'max' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/ProductListFilterValue.php b/src/Model/ProductListFilterValue.php
index 1750755..a34948a 100644
--- a/src/Model/ProductListFilterValue.php
+++ b/src/Model/ProductListFilterValue.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ProductListFilterValue extends AbstractModel
 {
@@ -15,7 +17,7 @@ class ProductListFilterValue extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'filterValueId' => [ 'model' => null, 'array' => false ],
+            'filterValueId' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/ProductListFiltersRequest.php b/src/Model/ProductListFiltersRequest.php
index 9178cdf..feb0db1 100644
--- a/src/Model/ProductListFiltersRequest.php
+++ b/src/Model/ProductListFiltersRequest.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ProductListFiltersRequest extends AbstractModel
 {
@@ -15,10 +17,10 @@ class ProductListFiltersRequest extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'searchTerm' => [ 'model' => null, 'array' => false ],
-            'categoryId' => [ 'model' => null, 'array' => false ],
-            'search' => [ 'model' => null, 'array' => false ],
-            'category' => [ 'model' => null, 'array' => false ],
+            'searchTerm' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'categoryId' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'search' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'category' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/ProductListFiltersResponse.php b/src/Model/ProductListFiltersResponse.php
index 0815b7b..f1e98b4 100644
--- a/src/Model/ProductListFiltersResponse.php
+++ b/src/Model/ProductListFiltersResponse.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ProductListFiltersResponse extends AbstractModel
 {
@@ -15,9 +17,9 @@ class ProductListFiltersResponse extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'categoryData' => [ 'model' => Categories::class, 'array' => false ],
-            'filterRanges' => [ 'model' => FilterRanges::class, 'array' => true ],
-            'filters' => [ 'model' => Filters::class, 'array' => true ],
+            'categoryData' => [ 'model' => Categories::class, 'enum' => null, 'array' => false ],
+            'filterRanges' => [ 'model' => FilterRanges::class, 'enum' => null, 'array' => true ],
+            'filters' => [ 'model' => Filters::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/ProductListProduct.php b/src/Model/ProductListProduct.php
index f9a535b..6bfb279 100644
--- a/src/Model/ProductListProduct.php
+++ b/src/Model/ProductListProduct.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ProductListProduct extends AbstractModel
 {
@@ -15,8 +17,8 @@ class ProductListProduct extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'title' => [ 'model' => null, 'array' => false ],
-            'eans' => [ 'model' => ProductListProductEan::class, 'array' => true ],
+            'title' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'eans' => [ 'model' => ProductListProductEan::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/ProductListProductEan.php b/src/Model/ProductListProductEan.php
index 69488a4..aba09db 100644
--- a/src/Model/ProductListProductEan.php
+++ b/src/Model/ProductListProductEan.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ProductListProductEan extends AbstractModel
 {
@@ -15,7 +17,7 @@ class ProductListProductEan extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'ean' => [ 'model' => null, 'array' => false ],
+            'ean' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/ProductListRequest.php b/src/Model/ProductListRequest.php
index 9ca050d..af24001 100644
--- a/src/Model/ProductListRequest.php
+++ b/src/Model/ProductListRequest.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ProductListRequest extends AbstractModel
 {
@@ -15,18 +17,18 @@ class ProductListRequest extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'countryCode' => [ 'model' => null, 'array' => false ],
-            'searchTerm' => [ 'model' => null, 'array' => false ],
-            'categoryId' => [ 'model' => null, 'array' => false ],
-            'filterRanges' => [ 'model' => ProductListFilterRange::class, 'array' => true ],
-            'filterValues' => [ 'model' => ProductListFilterValue::class, 'array' => true ],
-            'sort' => [ 'model' => null, 'array' => false ],
-            'page' => [ 'model' => null, 'array' => false ],
+            'countryCode' => [ 'model' => null, 'enum' => Enum\ProductListRequestCountryCode::class, 'array' => false ],
+            'searchTerm' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'categoryId' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'filterRanges' => [ 'model' => ProductListFilterRange::class, 'enum' => null, 'array' => true ],
+            'filterValues' => [ 'model' => ProductListFilterValue::class, 'enum' => null, 'array' => true ],
+            'sort' => [ 'model' => null, 'enum' => Enum\ProductListRequestSort::class, 'array' => false ],
+            'page' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
     /**
-     * @var string The country for which the products will be retrieved.
+     * @var Enum\ProductListRequestCountryCode The country for which the products will be retrieved.
      */
     public $countryCode;
 
@@ -51,7 +53,7 @@ public function getModelDefinition(): array
     public $filterValues = [];
 
     /**
-     * @var string Determines the order of the products.
+     * @var Enum\ProductListRequestSort Determines the order of the products.
      */
     public $sort;
 
diff --git a/src/Model/ProductListResponse.php b/src/Model/ProductListResponse.php
index 4f2dba2..19c629f 100644
--- a/src/Model/ProductListResponse.php
+++ b/src/Model/ProductListResponse.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ProductListResponse extends AbstractModel
 {
@@ -15,8 +17,8 @@ class ProductListResponse extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'products' => [ 'model' => ProductListProduct::class, 'array' => true ],
-            'sort' => [ 'model' => null, 'array' => false ],
+            'products' => [ 'model' => ProductListProduct::class, 'enum' => null, 'array' => true ],
+            'sort' => [ 'model' => null, 'enum' => Enum\ProductListResponseSort::class, 'array' => false ],
         ];
     }
 
@@ -27,7 +29,7 @@ public function getModelDefinition(): array
     public $products = [];
 
     /**
-     * @var string Determines the order of the products.
+     * @var Enum\ProductListResponseSort Determines the order of the products.
      */
     public $sort;
 }
diff --git a/src/Model/ProductPlacementResponse.php b/src/Model/ProductPlacementResponse.php
index 893be98..1c70c00 100644
--- a/src/Model/ProductPlacementResponse.php
+++ b/src/Model/ProductPlacementResponse.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ProductPlacementResponse extends AbstractModel
 {
@@ -15,8 +17,8 @@ class ProductPlacementResponse extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'url' => [ 'model' => null, 'array' => false ],
-            'categories' => [ 'model' => Category::class, 'array' => true ],
+            'url' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'categories' => [ 'model' => Category::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/ProductRatingsRating.php b/src/Model/ProductRatingsRating.php
index 5e1860b..b9a22c6 100644
--- a/src/Model/ProductRatingsRating.php
+++ b/src/Model/ProductRatingsRating.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ProductRatingsRating extends AbstractModel
 {
@@ -15,8 +17,8 @@ class ProductRatingsRating extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'rating' => [ 'model' => null, 'array' => false ],
-            'count' => [ 'model' => null, 'array' => false ],
+            'rating' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'count' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/ProductRatingsResponse.php b/src/Model/ProductRatingsResponse.php
index 54cf74b..533ef21 100644
--- a/src/Model/ProductRatingsResponse.php
+++ b/src/Model/ProductRatingsResponse.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ProductRatingsResponse extends AbstractModel
 {
@@ -15,7 +17,7 @@ class ProductRatingsResponse extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'ratings' => [ 'model' => ProductRatingsRating::class, 'array' => true ],
+            'ratings' => [ 'model' => ProductRatingsRating::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/Products.php b/src/Model/Products.php
index cb21872..e767d0e 100644
--- a/src/Model/Products.php
+++ b/src/Model/Products.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class Products extends AbstractModel
 {
@@ -15,9 +17,9 @@ class Products extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'description' => [ 'model' => null, 'array' => false ],
-            'quantity' => [ 'model' => null, 'array' => false ],
-            'unitPrice' => [ 'model' => null, 'array' => false ],
+            'description' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'quantity' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'unitPrice' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/Promotion.php b/src/Model/Promotion.php
index ead60d7..00f3c97 100644
--- a/src/Model/Promotion.php
+++ b/src/Model/Promotion.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class Promotion extends AbstractModel
 {
@@ -15,14 +17,14 @@ class Promotion extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'promotionId' => [ 'model' => null, 'array' => false ],
-            'title' => [ 'model' => null, 'array' => false ],
-            'startDateTime' => [ 'model' => null, 'array' => false ],
-            'endDateTime' => [ 'model' => null, 'array' => false ],
-            'countries' => [ 'model' => PromotionCountryCode::class, 'array' => true ],
-            'promotionType' => [ 'model' => null, 'array' => false ],
-            'retailerSpecificPromotion' => [ 'model' => null, 'array' => false ],
-            'campaign' => [ 'model' => Campaign::class, 'array' => false ],
+            'promotionId' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'title' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'startDateTime' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'endDateTime' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'countries' => [ 'model' => PromotionCountryCode::class, 'enum' => null, 'array' => true ],
+            'promotionType' => [ 'model' => null, 'enum' => Enum\PromotionPromotionType::class, 'array' => false ],
+            'retailerSpecificPromotion' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'campaign' => [ 'model' => Campaign::class, 'enum' => null, 'array' => false ],
         ];
     }
 
@@ -52,7 +54,7 @@ public function getModelDefinition(): array
     public $countries = [];
 
     /**
-     * @var string The type of the promotion.
+     * @var Enum\PromotionPromotionType The type of the promotion.
      */
     public $promotionType;
 
diff --git a/src/Model/PromotionCountryCode.php b/src/Model/PromotionCountryCode.php
index cc33844..8e21abf 100644
--- a/src/Model/PromotionCountryCode.php
+++ b/src/Model/PromotionCountryCode.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class PromotionCountryCode extends AbstractModel
 {
@@ -15,12 +17,12 @@ class PromotionCountryCode extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'countryCode' => [ 'model' => null, 'array' => false ],
+            'countryCode' => [ 'model' => null, 'enum' => Enum\PromotionCountryCodeCountryCode::class, 'array' => false ],
         ];
     }
 
     /**
-     * @var string The country code of the country in which the promotion is active.
+     * @var Enum\PromotionCountryCodeCountryCode The country code of the country in which the promotion is active.
      */
     public $countryCode;
 }
diff --git a/src/Model/Promotions.php b/src/Model/Promotions.php
index 30b08fe..8237218 100644
--- a/src/Model/Promotions.php
+++ b/src/Model/Promotions.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class Promotions extends AbstractModel
 {
@@ -15,7 +17,7 @@ class Promotions extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'promotions' => [ 'model' => ReducedPromotion::class, 'array' => true ],
+            'promotions' => [ 'model' => ReducedPromotion::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/ReducedInvalidReplenishmentLine.php b/src/Model/ReducedInvalidReplenishmentLine.php
index 22772d5..c81ef31 100644
--- a/src/Model/ReducedInvalidReplenishmentLine.php
+++ b/src/Model/ReducedInvalidReplenishmentLine.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ReducedInvalidReplenishmentLine extends AbstractModel
 {
@@ -15,13 +17,13 @@ class ReducedInvalidReplenishmentLine extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'type' => [ 'model' => null, 'array' => false ],
+            'type' => [ 'model' => null, 'enum' => Enum\ReducedInvalidReplenishmentLineType::class, 'array' => false ],
         ];
     }
 
     /**
-     * @var string Type of invalid replenishment line, in case the BSKU and/or EAN cannot be determined for this
-     * replenishment line.
+     * @var Enum\ReducedInvalidReplenishmentLineType Type of invalid replenishment line, in case the BSKU and/or EAN
+     * cannot be determined for this replenishment line.
      */
     public $type;
 }
diff --git a/src/Model/ReducedOrder.php b/src/Model/ReducedOrder.php
index 39b1bb9..3633eb9 100644
--- a/src/Model/ReducedOrder.php
+++ b/src/Model/ReducedOrder.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ReducedOrder extends AbstractModel
 {
@@ -15,9 +17,9 @@ class ReducedOrder extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'orderId' => [ 'model' => null, 'array' => false ],
-            'orderPlacedDateTime' => [ 'model' => null, 'array' => false ],
-            'orderItems' => [ 'model' => ReducedOrderItem::class, 'array' => true ],
+            'orderId' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'orderPlacedDateTime' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'orderItems' => [ 'model' => ReducedOrderItem::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/ReducedOrderItem.php b/src/Model/ReducedOrderItem.php
index a1cd1ac..ffac555 100644
--- a/src/Model/ReducedOrderItem.php
+++ b/src/Model/ReducedOrderItem.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ReducedOrderItem extends AbstractModel
 {
@@ -15,15 +17,15 @@ class ReducedOrderItem extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'orderItemId' => [ 'model' => null, 'array' => false ],
-            'ean' => [ 'model' => null, 'array' => false ],
-            'fulfilmentMethod' => [ 'model' => null, 'array' => false ],
-            'fulfilmentStatus' => [ 'model' => null, 'array' => false ],
-            'quantity' => [ 'model' => null, 'array' => false ],
-            'quantityShipped' => [ 'model' => null, 'array' => false ],
-            'quantityCancelled' => [ 'model' => null, 'array' => false ],
-            'cancellationRequest' => [ 'model' => null, 'array' => false ],
-            'latestChangedDateTime' => [ 'model' => null, 'array' => false ],
+            'orderItemId' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'ean' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'fulfilmentMethod' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'fulfilmentStatus' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'quantity' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'quantityShipped' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'quantityCancelled' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'cancellationRequest' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'latestChangedDateTime' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/ReducedOrders.php b/src/Model/ReducedOrders.php
index 440eb14..4a480c8 100644
--- a/src/Model/ReducedOrders.php
+++ b/src/Model/ReducedOrders.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ReducedOrders extends AbstractModel
 {
@@ -15,7 +17,7 @@ class ReducedOrders extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'orders' => [ 'model' => ReducedOrder::class, 'array' => true ],
+            'orders' => [ 'model' => ReducedOrder::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/ReducedPromotion.php b/src/Model/ReducedPromotion.php
index c4d4a12..5982a92 100644
--- a/src/Model/ReducedPromotion.php
+++ b/src/Model/ReducedPromotion.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ReducedPromotion extends AbstractModel
 {
@@ -15,14 +17,14 @@ class ReducedPromotion extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'promotionId' => [ 'model' => null, 'array' => false ],
-            'title' => [ 'model' => null, 'array' => false ],
-            'startDateTime' => [ 'model' => null, 'array' => false ],
-            'endDateTime' => [ 'model' => null, 'array' => false ],
-            'countries' => [ 'model' => PromotionCountryCode::class, 'array' => true ],
-            'promotionType' => [ 'model' => null, 'array' => false ],
-            'retailerSpecificPromotion' => [ 'model' => null, 'array' => false ],
-            'campaign' => [ 'model' => Campaign::class, 'array' => false ],
+            'promotionId' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'title' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'startDateTime' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'endDateTime' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'countries' => [ 'model' => PromotionCountryCode::class, 'enum' => null, 'array' => true ],
+            'promotionType' => [ 'model' => null, 'enum' => Enum\ReducedPromotionPromotionType::class, 'array' => false ],
+            'retailerSpecificPromotion' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'campaign' => [ 'model' => Campaign::class, 'enum' => null, 'array' => false ],
         ];
     }
 
@@ -52,7 +54,7 @@ public function getModelDefinition(): array
     public $countries = [];
 
     /**
-     * @var string The type of the promotion.
+     * @var Enum\ReducedPromotionPromotionType The type of the promotion.
      */
     public $promotionType;
 
diff --git a/src/Model/ReducedReplenishment.php b/src/Model/ReducedReplenishment.php
index 355e79b..7e3961c 100644
--- a/src/Model/ReducedReplenishment.php
+++ b/src/Model/ReducedReplenishment.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ReducedReplenishment extends AbstractModel
 {
@@ -15,11 +17,11 @@ class ReducedReplenishment extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'replenishmentId' => [ 'model' => null, 'array' => false ],
-            'reference' => [ 'model' => null, 'array' => false ],
-            'creationDateTime' => [ 'model' => null, 'array' => false ],
-            'lines' => [ 'model' => ReducedReplenishmentLines::class, 'array' => true ],
-            'invalidLines' => [ 'model' => ReducedInvalidReplenishmentLine::class, 'array' => true ],
+            'replenishmentId' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'reference' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'creationDateTime' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'lines' => [ 'model' => ReducedReplenishmentLines::class, 'enum' => null, 'array' => true ],
+            'invalidLines' => [ 'model' => ReducedInvalidReplenishmentLine::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/ReducedReplenishmentLines.php b/src/Model/ReducedReplenishmentLines.php
index 8c4832f..52c4872 100644
--- a/src/Model/ReducedReplenishmentLines.php
+++ b/src/Model/ReducedReplenishmentLines.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ReducedReplenishmentLines extends AbstractModel
 {
@@ -15,7 +17,7 @@ class ReducedReplenishmentLines extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'ean' => [ 'model' => null, 'array' => false ],
+            'ean' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/ReducedReturn.php b/src/Model/ReducedReturn.php
index 7ce8fc0..09bbc56 100644
--- a/src/Model/ReducedReturn.php
+++ b/src/Model/ReducedReturn.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ReducedReturn extends AbstractModel
 {
@@ -15,10 +17,10 @@ class ReducedReturn extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'returnId' => [ 'model' => null, 'array' => false ],
-            'registrationDateTime' => [ 'model' => null, 'array' => false ],
-            'fulfilmentMethod' => [ 'model' => null, 'array' => false ],
-            'returnItems' => [ 'model' => ReducedReturnItem::class, 'array' => true ],
+            'returnId' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'registrationDateTime' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'fulfilmentMethod' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'returnItems' => [ 'model' => ReducedReturnItem::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/ReducedReturnItem.php b/src/Model/ReducedReturnItem.php
index bda0c99..daec483 100644
--- a/src/Model/ReducedReturnItem.php
+++ b/src/Model/ReducedReturnItem.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ReducedReturnItem extends AbstractModel
 {
@@ -15,13 +17,13 @@ class ReducedReturnItem extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'rmaId' => [ 'model' => null, 'array' => false ],
-            'orderId' => [ 'model' => null, 'array' => false ],
-            'ean' => [ 'model' => null, 'array' => false ],
-            'expectedQuantity' => [ 'model' => null, 'array' => false ],
-            'returnReason' => [ 'model' => ReturnReason::class, 'array' => false ],
-            'handled' => [ 'model' => null, 'array' => false ],
-            'processingResults' => [ 'model' => ReturnProcessingResult::class, 'array' => true ],
+            'rmaId' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'orderId' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'ean' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'expectedQuantity' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'returnReason' => [ 'model' => ReturnReason::class, 'enum' => null, 'array' => false ],
+            'handled' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'processingResults' => [ 'model' => ReturnProcessingResult::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/ReducedShipment.php b/src/Model/ReducedShipment.php
index 3a0a30f..fe8ffdb 100644
--- a/src/Model/ReducedShipment.php
+++ b/src/Model/ReducedShipment.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ReducedShipment extends AbstractModel
 {
@@ -15,12 +17,12 @@ class ReducedShipment extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'shipmentId' => [ 'model' => null, 'array' => false ],
-            'shipmentDateTime' => [ 'model' => null, 'array' => false ],
-            'shipmentReference' => [ 'model' => null, 'array' => false ],
-            'order' => [ 'model' => ReducedShipmentOrder::class, 'array' => false ],
-            'shipmentItems' => [ 'model' => ReducedShipmentItem::class, 'array' => true ],
-            'transport' => [ 'model' => ReducedTransport::class, 'array' => false ],
+            'shipmentId' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'shipmentDateTime' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'shipmentReference' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'order' => [ 'model' => ReducedShipmentOrder::class, 'enum' => null, 'array' => false ],
+            'shipmentItems' => [ 'model' => ReducedShipmentItem::class, 'enum' => null, 'array' => true ],
+            'transport' => [ 'model' => ReducedTransport::class, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/ReducedShipmentItem.php b/src/Model/ReducedShipmentItem.php
index 38624ee..14a01c9 100644
--- a/src/Model/ReducedShipmentItem.php
+++ b/src/Model/ReducedShipmentItem.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ReducedShipmentItem extends AbstractModel
 {
@@ -15,8 +17,8 @@ class ReducedShipmentItem extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'orderItemId' => [ 'model' => null, 'array' => false ],
-            'ean' => [ 'model' => null, 'array' => false ],
+            'orderItemId' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'ean' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/ReducedShipmentOrder.php b/src/Model/ReducedShipmentOrder.php
index 358b682..a124854 100644
--- a/src/Model/ReducedShipmentOrder.php
+++ b/src/Model/ReducedShipmentOrder.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ReducedShipmentOrder extends AbstractModel
 {
@@ -15,8 +17,8 @@ class ReducedShipmentOrder extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'orderId' => [ 'model' => null, 'array' => false ],
-            'orderPlacedDateTime' => [ 'model' => null, 'array' => false ],
+            'orderId' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'orderPlacedDateTime' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/ReducedTransport.php b/src/Model/ReducedTransport.php
index ec3d000..55c4647 100644
--- a/src/Model/ReducedTransport.php
+++ b/src/Model/ReducedTransport.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ReducedTransport extends AbstractModel
 {
@@ -15,7 +17,7 @@ class ReducedTransport extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'transportId' => [ 'model' => null, 'array' => false ],
+            'transportId' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/Reduction.php b/src/Model/Reduction.php
index b6846ae..9066800 100644
--- a/src/Model/Reduction.php
+++ b/src/Model/Reduction.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class Reduction extends AbstractModel
 {
@@ -15,10 +17,10 @@ class Reduction extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'maximumPrice' => [ 'model' => null, 'array' => false ],
-            'costReduction' => [ 'model' => null, 'array' => false ],
-            'startDate' => [ 'model' => null, 'array' => false ],
-            'endDate' => [ 'model' => null, 'array' => false ],
+            'maximumPrice' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'costReduction' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'startDate' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'endDate' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/RelatedSearchTerm.php b/src/Model/RelatedSearchTerm.php
index ca45146..47312fc 100644
--- a/src/Model/RelatedSearchTerm.php
+++ b/src/Model/RelatedSearchTerm.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class RelatedSearchTerm extends AbstractModel
 {
@@ -15,8 +17,8 @@ class RelatedSearchTerm extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'total' => [ 'model' => null, 'array' => false ],
-            'searchTerm' => [ 'model' => null, 'array' => false ],
+            'total' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'searchTerm' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/RelevanceScore.php b/src/Model/RelevanceScore.php
index 9f5d2d7..b1cffa7 100644
--- a/src/Model/RelevanceScore.php
+++ b/src/Model/RelevanceScore.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class RelevanceScore extends AbstractModel
 {
@@ -15,18 +17,18 @@ class RelevanceScore extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'countryCode' => [ 'model' => null, 'array' => false ],
-            'relevanceScore' => [ 'model' => null, 'array' => false ],
+            'countryCode' => [ 'model' => null, 'enum' => Enum\RelevanceScoreCountryCode::class, 'array' => false ],
+            'relevanceScore' => [ 'model' => null, 'enum' => Enum\RelevanceScoreRelevanceScore::class, 'array' => false ],
         ];
     }
 
     /**
-     * @var string The country for which the relevance score has been calculated against.
+     * @var Enum\RelevanceScoreCountryCode The country for which the relevance score has been calculated against.
      */
     public $countryCode;
 
     /**
-     * @var int The calculated relevance score for the product.
+     * @var Enum\RelevanceScoreRelevanceScore The calculated relevance score for the product.
      */
     public $relevanceScore;
 }
diff --git a/src/Model/ReplenishmentLine.php b/src/Model/ReplenishmentLine.php
index c23b7f1..bd59b99 100644
--- a/src/Model/ReplenishmentLine.php
+++ b/src/Model/ReplenishmentLine.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ReplenishmentLine extends AbstractModel
 {
@@ -15,13 +17,13 @@ class ReplenishmentLine extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'ean' => [ 'model' => null, 'array' => false ],
-            'lineState' => [ 'model' => null, 'array' => false ],
-            'quantityAnnounced' => [ 'model' => null, 'array' => false ],
-            'quantityReceived' => [ 'model' => null, 'array' => false ],
-            'quantityInProgress' => [ 'model' => null, 'array' => false ],
-            'quantityWithGradedState' => [ 'model' => null, 'array' => false ],
-            'quantityWithRegularState' => [ 'model' => null, 'array' => false ],
+            'ean' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'lineState' => [ 'model' => null, 'enum' => Enum\ReplenishmentLineLineState::class, 'array' => false ],
+            'quantityAnnounced' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'quantityReceived' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'quantityInProgress' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'quantityWithGradedState' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'quantityWithRegularState' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
@@ -31,7 +33,8 @@ public function getModelDefinition(): array
     public $ean;
 
     /**
-     * @var string The state of the line indicating whether this line was announced within this replenishment.
+     * @var Enum\ReplenishmentLineLineState The state of the line indicating whether this line was announced within this
+     * replenishment.
      */
     public $lineState;
 
diff --git a/src/Model/ReplenishmentPickupTimeSlot.php b/src/Model/ReplenishmentPickupTimeSlot.php
index 1596364..4e61fa3 100644
--- a/src/Model/ReplenishmentPickupTimeSlot.php
+++ b/src/Model/ReplenishmentPickupTimeSlot.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ReplenishmentPickupTimeSlot extends AbstractModel
 {
@@ -15,8 +17,8 @@ class ReplenishmentPickupTimeSlot extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'fromDateTime' => [ 'model' => null, 'array' => false ],
-            'untilDateTime' => [ 'model' => null, 'array' => false ],
+            'fromDateTime' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'untilDateTime' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/ReplenishmentResponse.php b/src/Model/ReplenishmentResponse.php
index 921768c..8c195f6 100644
--- a/src/Model/ReplenishmentResponse.php
+++ b/src/Model/ReplenishmentResponse.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ReplenishmentResponse extends AbstractModel
 {
@@ -15,18 +17,18 @@ class ReplenishmentResponse extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'replenishmentId' => [ 'model' => null, 'array' => false ],
-            'creationDateTime' => [ 'model' => null, 'array' => false ],
-            'reference' => [ 'model' => null, 'array' => false ],
-            'labelingByBol' => [ 'model' => null, 'array' => false ],
-            'state' => [ 'model' => null, 'array' => false ],
-            'deliveryInformation' => [ 'model' => DeliveryInformation::class, 'array' => false ],
-            'pickupAppointment' => [ 'model' => PickupAppointment::class, 'array' => false ],
-            'numberOfLoadCarriers' => [ 'model' => null, 'array' => false ],
-            'loadCarriers' => [ 'model' => LoadCarrier::class, 'array' => true ],
-            'lines' => [ 'model' => ReplenishmentLine::class, 'array' => true ],
-            'invalidLines' => [ 'model' => InvalidReplenishmentLine::class, 'array' => true ],
-            'stateTransitions' => [ 'model' => StateTransition::class, 'array' => true ],
+            'replenishmentId' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'creationDateTime' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'reference' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'labelingByBol' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'state' => [ 'model' => null, 'enum' => Enum\ReplenishmentResponseState::class, 'array' => false ],
+            'deliveryInformation' => [ 'model' => DeliveryInformation::class, 'enum' => null, 'array' => false ],
+            'pickupAppointment' => [ 'model' => PickupAppointment::class, 'enum' => null, 'array' => false ],
+            'numberOfLoadCarriers' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'loadCarriers' => [ 'model' => LoadCarrier::class, 'enum' => null, 'array' => true ],
+            'lines' => [ 'model' => ReplenishmentLine::class, 'enum' => null, 'array' => true ],
+            'invalidLines' => [ 'model' => InvalidReplenishmentLine::class, 'enum' => null, 'array' => true ],
+            'stateTransitions' => [ 'model' => StateTransition::class, 'enum' => null, 'array' => true ],
         ];
     }
 
@@ -51,7 +53,7 @@ public function getModelDefinition(): array
     public $labelingByBol;
 
     /**
-     * @var string Indicates the state of this replenishment order.
+     * @var Enum\ReplenishmentResponseState Indicates the state of this replenishment order.
      */
     public $state;
 
diff --git a/src/Model/ReplenishmentsResponse.php b/src/Model/ReplenishmentsResponse.php
index 76505aa..6e50965 100644
--- a/src/Model/ReplenishmentsResponse.php
+++ b/src/Model/ReplenishmentsResponse.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ReplenishmentsResponse extends AbstractModel
 {
@@ -15,7 +17,7 @@ class ReplenishmentsResponse extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'replenishments' => [ 'model' => ReducedReplenishment::class, 'array' => true ],
+            'replenishments' => [ 'model' => ReducedReplenishment::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/RequestProductDestinationsRequest.php b/src/Model/RequestProductDestinationsRequest.php
index f864e6c..5b80f85 100644
--- a/src/Model/RequestProductDestinationsRequest.php
+++ b/src/Model/RequestProductDestinationsRequest.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class RequestProductDestinationsRequest extends AbstractModel
 {
@@ -15,7 +17,7 @@ class RequestProductDestinationsRequest extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'eans' => [ 'model' => Ean::class, 'array' => true ],
+            'eans' => [ 'model' => Ean::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/RetailerInformationResponse.php b/src/Model/RetailerInformationResponse.php
index 7b2fa57..59db612 100644
--- a/src/Model/RetailerInformationResponse.php
+++ b/src/Model/RetailerInformationResponse.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class RetailerInformationResponse extends AbstractModel
 {
@@ -15,13 +17,13 @@ class RetailerInformationResponse extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'retailerId' => [ 'model' => null, 'array' => false ],
-            'displayName' => [ 'model' => null, 'array' => false ],
-            'registrationDate' => [ 'model' => null, 'array' => false ],
-            'topRetailer' => [ 'model' => null, 'array' => false ],
-            'ratingMethod' => [ 'model' => null, 'array' => false ],
-            'retailerRating' => [ 'model' => RetailerRating::class, 'array' => false ],
-            'retailerReview' => [ 'model' => RetailerReview::class, 'array' => false ],
+            'retailerId' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'displayName' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'registrationDate' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'topRetailer' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'ratingMethod' => [ 'model' => null, 'enum' => Enum\RetailerInformationResponseRatingMethod::class, 'array' => false ],
+            'retailerRating' => [ 'model' => RetailerRating::class, 'enum' => null, 'array' => false ],
+            'retailerReview' => [ 'model' => RetailerReview::class, 'enum' => null, 'array' => false ],
         ];
     }
 
@@ -46,8 +48,8 @@ public function getModelDefinition(): array
     public $topRetailer;
 
     /**
-     * @var string An identifier that identifies if the rating is calculated over the past three months or on all
-     * reviews for the retailer.
+     * @var Enum\RetailerInformationResponseRatingMethod An identifier that identifies if the rating is calculated over
+     * the past three months or on all reviews for the retailer.
      */
     public $ratingMethod;
 
diff --git a/src/Model/RetailerOffer.php b/src/Model/RetailerOffer.php
index eea55af..1612a9c 100644
--- a/src/Model/RetailerOffer.php
+++ b/src/Model/RetailerOffer.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class RetailerOffer extends AbstractModel
 {
@@ -15,17 +17,17 @@ class RetailerOffer extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'offerId' => [ 'model' => null, 'array' => false ],
-            'ean' => [ 'model' => null, 'array' => false ],
-            'reference' => [ 'model' => null, 'array' => false ],
-            'onHoldByRetailer' => [ 'model' => null, 'array' => false ],
-            'unknownProductTitle' => [ 'model' => null, 'array' => false ],
-            'pricing' => [ 'model' => Pricing::class, 'array' => false ],
-            'stock' => [ 'model' => Stock::class, 'array' => false ],
-            'fulfilment' => [ 'model' => Fulfilment::class, 'array' => false ],
-            'store' => [ 'model' => Store::class, 'array' => false ],
-            'condition' => [ 'model' => Condition::class, 'array' => false ],
-            'notPublishableReasons' => [ 'model' => NotPublishableReason::class, 'array' => true ],
+            'offerId' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'ean' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'reference' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'onHoldByRetailer' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'unknownProductTitle' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'pricing' => [ 'model' => Pricing::class, 'enum' => null, 'array' => false ],
+            'stock' => [ 'model' => Stock::class, 'enum' => null, 'array' => false ],
+            'fulfilment' => [ 'model' => Fulfilment::class, 'enum' => null, 'array' => false ],
+            'store' => [ 'model' => Store::class, 'enum' => null, 'array' => false ],
+            'condition' => [ 'model' => Condition::class, 'enum' => null, 'array' => false ],
+            'notPublishableReasons' => [ 'model' => NotPublishableReason::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/RetailerRating.php b/src/Model/RetailerRating.php
index f270ee7..553000a 100644
--- a/src/Model/RetailerRating.php
+++ b/src/Model/RetailerRating.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class RetailerRating extends AbstractModel
 {
@@ -15,11 +17,11 @@ class RetailerRating extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'retailerRating' => [ 'model' => null, 'array' => false ],
-            'productInformationRating' => [ 'model' => null, 'array' => false ],
-            'deliveryTimeRating' => [ 'model' => null, 'array' => false ],
-            'shippingRating' => [ 'model' => null, 'array' => false ],
-            'serviceRating' => [ 'model' => null, 'array' => false ],
+            'retailerRating' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'productInformationRating' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'deliveryTimeRating' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'shippingRating' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'serviceRating' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/RetailerReview.php b/src/Model/RetailerReview.php
index b876172..b937304 100644
--- a/src/Model/RetailerReview.php
+++ b/src/Model/RetailerReview.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class RetailerReview extends AbstractModel
 {
@@ -15,11 +17,11 @@ class RetailerReview extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'totalReviewCount' => [ 'model' => null, 'array' => false ],
-            'approvalPercentage' => [ 'model' => null, 'array' => false ],
-            'positiveReviewCount' => [ 'model' => null, 'array' => false ],
-            'neutralReviewCount' => [ 'model' => null, 'array' => false ],
-            'negativeReviewCount' => [ 'model' => null, 'array' => false ],
+            'totalReviewCount' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'approvalPercentage' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'positiveReviewCount' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'neutralReviewCount' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'negativeReviewCount' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/ReturnItem.php b/src/Model/ReturnItem.php
index c796a4b..45c793a 100644
--- a/src/Model/ReturnItem.php
+++ b/src/Model/ReturnItem.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ReturnItem extends AbstractModel
 {
@@ -15,17 +17,17 @@ class ReturnItem extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'rmaId' => [ 'model' => null, 'array' => false ],
-            'orderId' => [ 'model' => null, 'array' => false ],
-            'ean' => [ 'model' => null, 'array' => false ],
-            'title' => [ 'model' => null, 'array' => false ],
-            'expectedQuantity' => [ 'model' => null, 'array' => false ],
-            'returnReason' => [ 'model' => ReturnReason::class, 'array' => false ],
-            'trackAndTrace' => [ 'model' => null, 'array' => false ],
-            'transporterName' => [ 'model' => null, 'array' => false ],
-            'handled' => [ 'model' => null, 'array' => false ],
-            'processingResults' => [ 'model' => ReturnProcessingResult::class, 'array' => true ],
-            'customerDetails' => [ 'model' => CustomerDetails::class, 'array' => false ],
+            'rmaId' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'orderId' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'ean' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'title' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'expectedQuantity' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'returnReason' => [ 'model' => ReturnReason::class, 'enum' => null, 'array' => false ],
+            'trackAndTrace' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'transporterName' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'handled' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'processingResults' => [ 'model' => ReturnProcessingResult::class, 'enum' => null, 'array' => true ],
+            'customerDetails' => [ 'model' => CustomerDetails::class, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/ReturnObject.php b/src/Model/ReturnObject.php
index 408ca58..52691c2 100644
--- a/src/Model/ReturnObject.php
+++ b/src/Model/ReturnObject.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ReturnObject extends AbstractModel
 {
@@ -15,10 +17,10 @@ class ReturnObject extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'returnId' => [ 'model' => null, 'array' => false ],
-            'registrationDateTime' => [ 'model' => null, 'array' => false ],
-            'fulfilmentMethod' => [ 'model' => null, 'array' => false ],
-            'returnItems' => [ 'model' => ReturnItem::class, 'array' => true ],
+            'returnId' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'registrationDateTime' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'fulfilmentMethod' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'returnItems' => [ 'model' => ReturnItem::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/ReturnProcessingResult.php b/src/Model/ReturnProcessingResult.php
index a1bac79..189a9f1 100644
--- a/src/Model/ReturnProcessingResult.php
+++ b/src/Model/ReturnProcessingResult.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ReturnProcessingResult extends AbstractModel
 {
@@ -15,10 +17,10 @@ class ReturnProcessingResult extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'quantity' => [ 'model' => null, 'array' => false ],
-            'processingResult' => [ 'model' => null, 'array' => false ],
-            'handlingResult' => [ 'model' => null, 'array' => false ],
-            'processingDateTime' => [ 'model' => null, 'array' => false ],
+            'quantity' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'processingResult' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'handlingResult' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'processingDateTime' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/ReturnReason.php b/src/Model/ReturnReason.php
index e1c276e..e0d813d 100644
--- a/src/Model/ReturnReason.php
+++ b/src/Model/ReturnReason.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ReturnReason extends AbstractModel
 {
@@ -15,9 +17,9 @@ class ReturnReason extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'mainReason' => [ 'model' => null, 'array' => false ],
-            'detailedReason' => [ 'model' => null, 'array' => false ],
-            'customerComments' => [ 'model' => null, 'array' => false ],
+            'mainReason' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'detailedReason' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'customerComments' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/ReturnRequest.php b/src/Model/ReturnRequest.php
index 35af73b..1711218 100644
--- a/src/Model/ReturnRequest.php
+++ b/src/Model/ReturnRequest.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ReturnRequest extends AbstractModel
 {
@@ -15,13 +17,13 @@ class ReturnRequest extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'handlingResult' => [ 'model' => null, 'array' => false ],
-            'quantityReturned' => [ 'model' => null, 'array' => false ],
+            'handlingResult' => [ 'model' => null, 'enum' => Enum\ReturnRequestHandlingResult::class, 'array' => false ],
+            'quantityReturned' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
     /**
-     * @var string The handling result requested by the retailer.
+     * @var Enum\ReturnRequestHandlingResult The handling result requested by the retailer.
      */
     public $handlingResult;
 
diff --git a/src/Model/ReturnsResponse.php b/src/Model/ReturnsResponse.php
index 91be311..93550fa 100644
--- a/src/Model/ReturnsResponse.php
+++ b/src/Model/ReturnsResponse.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ReturnsResponse extends AbstractModel
 {
@@ -15,7 +17,7 @@ class ReturnsResponse extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'returns' => [ 'model' => ReducedReturn::class, 'array' => true ],
+            'returns' => [ 'model' => ReducedReturn::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/SalesForecastPeriod.php b/src/Model/SalesForecastPeriod.php
index 11befa8..17882be 100644
--- a/src/Model/SalesForecastPeriod.php
+++ b/src/Model/SalesForecastPeriod.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class SalesForecastPeriod extends AbstractModel
 {
@@ -15,9 +17,9 @@ class SalesForecastPeriod extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'weeksAhead' => [ 'model' => null, 'array' => false ],
-            'total' => [ 'model' => Total::class, 'array' => false ],
-            'countries' => [ 'model' => Countries::class, 'array' => true ],
+            'weeksAhead' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'total' => [ 'model' => Total::class, 'enum' => null, 'array' => false ],
+            'countries' => [ 'model' => Countries::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/SalesForecastResponse.php b/src/Model/SalesForecastResponse.php
index 56ec2f0..ae7ac9c 100644
--- a/src/Model/SalesForecastResponse.php
+++ b/src/Model/SalesForecastResponse.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class SalesForecastResponse extends AbstractModel
 {
@@ -15,11 +17,11 @@ class SalesForecastResponse extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'name' => [ 'model' => null, 'array' => false ],
-            'type' => [ 'model' => null, 'array' => false ],
-            'total' => [ 'model' => Total::class, 'array' => false ],
-            'countries' => [ 'model' => Countries::class, 'array' => true ],
-            'periods' => [ 'model' => SalesForecastPeriod::class, 'array' => true ],
+            'name' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'type' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'total' => [ 'model' => Total::class, 'enum' => null, 'array' => false ],
+            'countries' => [ 'model' => Countries::class, 'enum' => null, 'array' => true ],
+            'periods' => [ 'model' => SalesForecastPeriod::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/Score.php b/src/Model/Score.php
index da541fb..93e3715 100644
--- a/src/Model/Score.php
+++ b/src/Model/Score.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class Score extends AbstractModel
 {
@@ -15,11 +17,11 @@ class Score extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'conforms' => [ 'model' => null, 'array' => false ],
-            'numerator' => [ 'model' => null, 'array' => false ],
-            'denominator' => [ 'model' => null, 'array' => false ],
-            'value' => [ 'model' => null, 'array' => false ],
-            'distanceToNorm' => [ 'model' => null, 'array' => false ],
+            'conforms' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'numerator' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'denominator' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'value' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'distanceToNorm' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/SearchTerm.php b/src/Model/SearchTerm.php
index 1144624..d451298 100644
--- a/src/Model/SearchTerm.php
+++ b/src/Model/SearchTerm.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class SearchTerm extends AbstractModel
 {
@@ -15,12 +17,12 @@ class SearchTerm extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'searchTerm' => [ 'model' => null, 'array' => false ],
-            'type' => [ 'model' => null, 'array' => false ],
-            'total' => [ 'model' => null, 'array' => false ],
-            'countries' => [ 'model' => SearchTermsCountry::class, 'array' => true ],
-            'periods' => [ 'model' => TotalPeriod::class, 'array' => true ],
-            'relatedSearchTerms' => [ 'model' => RelatedSearchTerm::class, 'array' => true ],
+            'searchTerm' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'type' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'total' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'countries' => [ 'model' => SearchTermsCountry::class, 'enum' => null, 'array' => true ],
+            'periods' => [ 'model' => TotalPeriod::class, 'enum' => null, 'array' => true ],
+            'relatedSearchTerms' => [ 'model' => RelatedSearchTerm::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/SearchTerms.php b/src/Model/SearchTerms.php
index fc26436..9f1b026 100644
--- a/src/Model/SearchTerms.php
+++ b/src/Model/SearchTerms.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class SearchTerms extends AbstractModel
 {
@@ -15,7 +17,7 @@ class SearchTerms extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'searchTerms' => [ 'model' => SearchTerm::class, 'array' => false ],
+            'searchTerms' => [ 'model' => SearchTerm::class, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/SearchTermsCountry.php b/src/Model/SearchTermsCountry.php
index c607e13..183743d 100644
--- a/src/Model/SearchTermsCountry.php
+++ b/src/Model/SearchTermsCountry.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class SearchTermsCountry extends AbstractModel
 {
@@ -15,8 +17,8 @@ class SearchTermsCountry extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'countryCode' => [ 'model' => null, 'array' => false ],
-            'value' => [ 'model' => null, 'array' => false ],
+            'countryCode' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'value' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/SearchTermsPeriod.php b/src/Model/SearchTermsPeriod.php
index 453fae0..da9256f 100644
--- a/src/Model/SearchTermsPeriod.php
+++ b/src/Model/SearchTermsPeriod.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class SearchTermsPeriod extends AbstractModel
 {
@@ -15,10 +17,10 @@ class SearchTermsPeriod extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'day' => [ 'model' => null, 'array' => false ],
-            'week' => [ 'model' => null, 'array' => false ],
-            'month' => [ 'model' => null, 'array' => false ],
-            'year' => [ 'model' => null, 'array' => false ],
+            'day' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'week' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'month' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'year' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/Serie.php b/src/Model/Serie.php
index 70b0edb..2c70a46 100644
--- a/src/Model/Serie.php
+++ b/src/Model/Serie.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class Serie extends AbstractModel
 {
@@ -15,7 +17,7 @@ class Serie extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'name' => [ 'model' => null, 'array' => false ],
+            'name' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/Shipment.php b/src/Model/Shipment.php
index 5229265..eda0058 100644
--- a/src/Model/Shipment.php
+++ b/src/Model/Shipment.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class Shipment extends AbstractModel
 {
@@ -15,15 +17,15 @@ class Shipment extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'shipmentId' => [ 'model' => null, 'array' => false ],
-            'shipmentDateTime' => [ 'model' => null, 'array' => false ],
-            'shipmentReference' => [ 'model' => null, 'array' => false ],
-            'pickupPoint' => [ 'model' => null, 'array' => false ],
-            'order' => [ 'model' => ShipmentOrder::class, 'array' => false ],
-            'shipmentDetails' => [ 'model' => ShipmentDetails::class, 'array' => false ],
-            'billingDetails' => [ 'model' => BillingDetails::class, 'array' => false ],
-            'shipmentItems' => [ 'model' => ShipmentItem::class, 'array' => true ],
-            'transport' => [ 'model' => ShipmentTransport::class, 'array' => false ],
+            'shipmentId' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'shipmentDateTime' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'shipmentReference' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'pickupPoint' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'order' => [ 'model' => ShipmentOrder::class, 'enum' => null, 'array' => false ],
+            'shipmentDetails' => [ 'model' => ShipmentDetails::class, 'enum' => null, 'array' => false ],
+            'billingDetails' => [ 'model' => BillingDetails::class, 'enum' => null, 'array' => false ],
+            'shipmentItems' => [ 'model' => ShipmentItem::class, 'enum' => null, 'array' => true ],
+            'transport' => [ 'model' => ShipmentTransport::class, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/ShipmentDetails.php b/src/Model/ShipmentDetails.php
index ffe838a..b09ad9a 100644
--- a/src/Model/ShipmentDetails.php
+++ b/src/Model/ShipmentDetails.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ShipmentDetails extends AbstractModel
 {
@@ -15,21 +17,21 @@ class ShipmentDetails extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'pickupPointName' => [ 'model' => null, 'array' => false ],
-            'salutation' => [ 'model' => null, 'array' => false ],
-            'firstName' => [ 'model' => null, 'array' => false ],
-            'surname' => [ 'model' => null, 'array' => false ],
-            'streetName' => [ 'model' => null, 'array' => false ],
-            'houseNumber' => [ 'model' => null, 'array' => false ],
-            'houseNumberExtension' => [ 'model' => null, 'array' => false ],
-            'extraAddressInformation' => [ 'model' => null, 'array' => false ],
-            'zipCode' => [ 'model' => null, 'array' => false ],
-            'city' => [ 'model' => null, 'array' => false ],
-            'countryCode' => [ 'model' => null, 'array' => false ],
-            'email' => [ 'model' => null, 'array' => false ],
-            'company' => [ 'model' => null, 'array' => false ],
-            'deliveryPhoneNumber' => [ 'model' => null, 'array' => false ],
-            'language' => [ 'model' => null, 'array' => false ],
+            'pickupPointName' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'salutation' => [ 'model' => null, 'enum' => Enum\ShipmentDetailsSalutation::class, 'array' => false ],
+            'firstName' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'surname' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'streetName' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'houseNumber' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'houseNumberExtension' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'extraAddressInformation' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'zipCode' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'city' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'countryCode' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'email' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'company' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'deliveryPhoneNumber' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'language' => [ 'model' => null, 'enum' => Enum\ShipmentDetailsLanguage::class, 'array' => false ],
         ];
     }
 
@@ -39,7 +41,7 @@ public function getModelDefinition(): array
     public $pickupPointName;
 
     /**
-     * @var string The salutation of the customer.
+     * @var Enum\ShipmentDetailsSalutation The salutation of the customer.
      */
     public $salutation;
 
@@ -105,7 +107,7 @@ public function getModelDefinition(): array
     public $deliveryPhoneNumber;
 
     /**
-     * @var string The language of the customer in case of contact.
+     * @var Enum\ShipmentDetailsLanguage The language of the customer in case of contact.
      */
     public $language;
 }
diff --git a/src/Model/ShipmentFulfilment.php b/src/Model/ShipmentFulfilment.php
index e0a4af1..415a145 100644
--- a/src/Model/ShipmentFulfilment.php
+++ b/src/Model/ShipmentFulfilment.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ShipmentFulfilment extends AbstractModel
 {
@@ -15,19 +17,21 @@ class ShipmentFulfilment extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'method' => [ 'model' => null, 'array' => false ],
-            'distributionParty' => [ 'model' => null, 'array' => false ],
-            'latestDeliveryDate' => [ 'model' => null, 'array' => false ],
+            'method' => [ 'model' => null, 'enum' => Enum\ShipmentFulfilmentMethod::class, 'array' => false ],
+            'distributionParty' => [ 'model' => null, 'enum' => Enum\ShipmentFulfilmentDistributionParty::class, 'array' => false ],
+            'latestDeliveryDate' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
     /**
-     * @var string The fulfilment method. Fulfilled by the retailer (FBR) or fulfilled by bol.com (FBB).
+     * @var Enum\ShipmentFulfilmentMethod The fulfilment method. Fulfilled by the retailer (FBR) or fulfilled by bol.com
+     * (FBB).
      */
     public $method;
 
     /**
-     * @var string The party that manages the distribution, either bol.com or the retailer itself.
+     * @var Enum\ShipmentFulfilmentDistributionParty The party that manages the distribution, either bol.com or the
+     * retailer itself.
      */
     public $distributionParty;
 
diff --git a/src/Model/ShipmentItem.php b/src/Model/ShipmentItem.php
index 12d9e20..b5d9328 100644
--- a/src/Model/ShipmentItem.php
+++ b/src/Model/ShipmentItem.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ShipmentItem extends AbstractModel
 {
@@ -15,13 +17,13 @@ class ShipmentItem extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'orderItemId' => [ 'model' => null, 'array' => false ],
-            'fulfilment' => [ 'model' => ShipmentFulfilment::class, 'array' => false ],
-            'offer' => [ 'model' => OrderOffer::class, 'array' => false ],
-            'product' => [ 'model' => OrderProduct::class, 'array' => false ],
-            'quantity' => [ 'model' => null, 'array' => false ],
-            'unitPrice' => [ 'model' => null, 'array' => false ],
-            'commission' => [ 'model' => null, 'array' => false ],
+            'orderItemId' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'fulfilment' => [ 'model' => ShipmentFulfilment::class, 'enum' => null, 'array' => false ],
+            'offer' => [ 'model' => OrderOffer::class, 'enum' => null, 'array' => false ],
+            'product' => [ 'model' => OrderProduct::class, 'enum' => null, 'array' => false ],
+            'quantity' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'unitPrice' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'commission' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/ShipmentOrder.php b/src/Model/ShipmentOrder.php
index cd78777..6813dc4 100644
--- a/src/Model/ShipmentOrder.php
+++ b/src/Model/ShipmentOrder.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ShipmentOrder extends AbstractModel
 {
@@ -15,8 +17,8 @@ class ShipmentOrder extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'orderId' => [ 'model' => null, 'array' => false ],
-            'orderPlacedDateTime' => [ 'model' => null, 'array' => false ],
+            'orderId' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'orderPlacedDateTime' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/ShipmentRequest.php b/src/Model/ShipmentRequest.php
index e2f083e..1f8fdcb 100644
--- a/src/Model/ShipmentRequest.php
+++ b/src/Model/ShipmentRequest.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ShipmentRequest extends AbstractModel
 {
@@ -15,10 +17,10 @@ class ShipmentRequest extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'orderItems' => [ 'model' => OrderItem::class, 'array' => true ],
-            'shipmentReference' => [ 'model' => null, 'array' => false ],
-            'shippingLabelId' => [ 'model' => null, 'array' => false ],
-            'transport' => [ 'model' => TransportInstruction::class, 'array' => false ],
+            'orderItems' => [ 'model' => OrderItem::class, 'enum' => null, 'array' => true ],
+            'shipmentReference' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'shippingLabelId' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'transport' => [ 'model' => TransportInstruction::class, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/ShipmentTransport.php b/src/Model/ShipmentTransport.php
index 99727da..e166c78 100644
--- a/src/Model/ShipmentTransport.php
+++ b/src/Model/ShipmentTransport.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ShipmentTransport extends AbstractModel
 {
@@ -15,11 +17,11 @@ class ShipmentTransport extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'transportId' => [ 'model' => null, 'array' => false ],
-            'transporterCode' => [ 'model' => null, 'array' => false ],
-            'trackAndTrace' => [ 'model' => null, 'array' => false ],
-            'shippingLabelId' => [ 'model' => null, 'array' => false ],
-            'transportEvents' => [ 'model' => TransportEvent::class, 'array' => true ],
+            'transportId' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'transporterCode' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'trackAndTrace' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'shippingLabelId' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'transportEvents' => [ 'model' => TransportEvent::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/ShipmentsResponse.php b/src/Model/ShipmentsResponse.php
index ce66178..0b1e8f1 100644
--- a/src/Model/ShipmentsResponse.php
+++ b/src/Model/ShipmentsResponse.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ShipmentsResponse extends AbstractModel
 {
@@ -15,7 +17,7 @@ class ShipmentsResponse extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'shipments' => [ 'model' => ReducedShipment::class, 'array' => true ],
+            'shipments' => [ 'model' => ReducedShipment::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/ShippingLabelRequest.php b/src/Model/ShippingLabelRequest.php
index d4279ce..0996e18 100644
--- a/src/Model/ShippingLabelRequest.php
+++ b/src/Model/ShippingLabelRequest.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class ShippingLabelRequest extends AbstractModel
 {
@@ -15,8 +17,8 @@ class ShippingLabelRequest extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'orderItems' => [ 'model' => DeliveryOptionsRequestOrderItem::class, 'array' => true ],
-            'shippingLabelOfferId' => [ 'model' => null, 'array' => false ],
+            'orderItems' => [ 'model' => DeliveryOptionsRequestOrderItem::class, 'enum' => null, 'array' => true ],
+            'shippingLabelOfferId' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/StateTransition.php b/src/Model/StateTransition.php
index 5d5b6e2..aea0126 100644
--- a/src/Model/StateTransition.php
+++ b/src/Model/StateTransition.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class StateTransition extends AbstractModel
 {
@@ -15,13 +17,13 @@ class StateTransition extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'state' => [ 'model' => null, 'array' => false ],
-            'stateDateTime' => [ 'model' => null, 'array' => false ],
+            'state' => [ 'model' => null, 'enum' => Enum\StateTransitionState::class, 'array' => false ],
+            'stateDateTime' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
     /**
-     * @var string Indicates the state of this replenishment order.
+     * @var Enum\StateTransitionState Indicates the state of this replenishment order.
      */
     public $state;
 
diff --git a/src/Model/StatusTransitions.php b/src/Model/StatusTransitions.php
index 6a9861b..0f2ce80 100644
--- a/src/Model/StatusTransitions.php
+++ b/src/Model/StatusTransitions.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class StatusTransitions extends AbstractModel
 {
@@ -15,13 +17,13 @@ class StatusTransitions extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'status' => [ 'model' => null, 'array' => false ],
-            'statusDateTime' => [ 'model' => null, 'array' => false ],
+            'status' => [ 'model' => null, 'enum' => Enum\StatusTransitionsStatus::class, 'array' => false ],
+            'statusDateTime' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
     /**
-     * @var string Indicates the status of this invoice request.
+     * @var Enum\StatusTransitionsStatus Indicates the status of this invoice request.
      */
     public $status;
 
diff --git a/src/Model/Stock.php b/src/Model/Stock.php
index fc68c77..6b6adb3 100644
--- a/src/Model/Stock.php
+++ b/src/Model/Stock.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class Stock extends AbstractModel
 {
@@ -15,9 +17,9 @@ class Stock extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'amount' => [ 'model' => null, 'array' => false ],
-            'correctedStock' => [ 'model' => null, 'array' => false ],
-            'managedByRetailer' => [ 'model' => null, 'array' => false ],
+            'amount' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'correctedStock' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'managedByRetailer' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/StockCreate.php b/src/Model/StockCreate.php
index 64a1310..0811555 100644
--- a/src/Model/StockCreate.php
+++ b/src/Model/StockCreate.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class StockCreate extends AbstractModel
 {
@@ -15,8 +17,8 @@ class StockCreate extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'amount' => [ 'model' => null, 'array' => false ],
-            'managedByRetailer' => [ 'model' => null, 'array' => false ],
+            'amount' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'managedByRetailer' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/Store.php b/src/Model/Store.php
index c456745..0271207 100644
--- a/src/Model/Store.php
+++ b/src/Model/Store.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class Store extends AbstractModel
 {
@@ -15,8 +17,8 @@ class Store extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'productTitle' => [ 'model' => null, 'array' => false ],
-            'visible' => [ 'model' => OffersCountryCode::class, 'array' => true ],
+            'productTitle' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'visible' => [ 'model' => OffersCountryCode::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/SubCategory.php b/src/Model/SubCategory.php
index cab08f6..fc1fabb 100644
--- a/src/Model/SubCategory.php
+++ b/src/Model/SubCategory.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class SubCategory extends AbstractModel
 {
@@ -15,8 +17,8 @@ class SubCategory extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'id' => [ 'model' => null, 'array' => false ],
-            'name' => [ 'model' => null, 'array' => false ],
+            'id' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'name' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/SubscriptionRequest.php b/src/Model/SubscriptionRequest.php
index 6f7db5d..f0c00e9 100644
--- a/src/Model/SubscriptionRequest.php
+++ b/src/Model/SubscriptionRequest.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class SubscriptionRequest extends AbstractModel
 {
@@ -15,9 +17,9 @@ class SubscriptionRequest extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'resources' => [ 'model' => null, 'array' => true ],
-            'url' => [ 'model' => null, 'array' => false ],
-            'subscriptionType' => [ 'model' => null, 'array' => false ],
+            'resources' => [ 'model' => null, 'enum' => null, 'array' => true ],
+            'url' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'subscriptionType' => [ 'model' => null, 'enum' => Enum\SubscriptionRequestSubscriptionType::class, 'array' => false ],
         ];
     }
 
@@ -34,8 +36,8 @@ public function getModelDefinition(): array
     public $url;
 
     /**
-     * @var string The type of subscription. It indicates the platform where the events will be subscribed to. Be aware
-     * that certain event types are only available for specific types.
+     * @var Enum\SubscriptionRequestSubscriptionType The type of subscription. It indicates the platform where the
+     * events will be subscribed to. Be aware that certain event types are only available for specific types.
      */
     public $subscriptionType;
 }
diff --git a/src/Model/SubscriptionResponse.php b/src/Model/SubscriptionResponse.php
index d1d3978..eae223f 100644
--- a/src/Model/SubscriptionResponse.php
+++ b/src/Model/SubscriptionResponse.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class SubscriptionResponse extends AbstractModel
 {
@@ -15,10 +17,10 @@ class SubscriptionResponse extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'id' => [ 'model' => null, 'array' => false ],
-            'resources' => [ 'model' => null, 'array' => true ],
-            'url' => [ 'model' => null, 'array' => false ],
-            'subscriptionType' => [ 'model' => null, 'array' => false ],
+            'id' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'resources' => [ 'model' => null, 'enum' => null, 'array' => true ],
+            'url' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'subscriptionType' => [ 'model' => null, 'enum' => Enum\SubscriptionResponseSubscriptionType::class, 'array' => false ],
         ];
     }
 
@@ -40,8 +42,8 @@ public function getModelDefinition(): array
     public $url;
 
     /**
-     * @var string The type of subscription. It indicates the platform where the events will be subscribed to. Be aware
-     * that certain event types are only available for specific types.
+     * @var Enum\SubscriptionResponseSubscriptionType The type of subscription. It indicates the platform where the
+     * events will be subscribed to. Be aware that certain event types are only available for specific types.
      */
     public $subscriptionType;
 }
diff --git a/src/Model/SubscriptionsResponse.php b/src/Model/SubscriptionsResponse.php
index 0043ece..ac3311f 100644
--- a/src/Model/SubscriptionsResponse.php
+++ b/src/Model/SubscriptionsResponse.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class SubscriptionsResponse extends AbstractModel
 {
@@ -15,7 +17,7 @@ class SubscriptionsResponse extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'subscriptions' => [ 'model' => SubscriptionResponse::class, 'array' => true ],
+            'subscriptions' => [ 'model' => SubscriptionResponse::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/Total.php b/src/Model/Total.php
index 5edc3cd..0f0b3cc 100644
--- a/src/Model/Total.php
+++ b/src/Model/Total.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class Total extends AbstractModel
 {
@@ -15,8 +17,8 @@ class Total extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'minimum' => [ 'model' => null, 'array' => false ],
-            'maximum' => [ 'model' => null, 'array' => false ],
+            'minimum' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'maximum' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/TotalPeriod.php b/src/Model/TotalPeriod.php
index f82294d..85eac31 100644
--- a/src/Model/TotalPeriod.php
+++ b/src/Model/TotalPeriod.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class TotalPeriod extends AbstractModel
 {
@@ -15,9 +17,9 @@ class TotalPeriod extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'period' => [ 'model' => SearchTermsPeriod::class, 'array' => false ],
-            'total' => [ 'model' => null, 'array' => false ],
-            'countries' => [ 'model' => SearchTermsCountry::class, 'array' => true ],
+            'period' => [ 'model' => SearchTermsPeriod::class, 'enum' => null, 'array' => false ],
+            'total' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'countries' => [ 'model' => SearchTermsCountry::class, 'enum' => null, 'array' => true ],
         ];
     }
 
diff --git a/src/Model/TransportEvent.php b/src/Model/TransportEvent.php
index 8ba2ebb..53686fe 100644
--- a/src/Model/TransportEvent.php
+++ b/src/Model/TransportEvent.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class TransportEvent extends AbstractModel
 {
@@ -15,13 +17,14 @@ class TransportEvent extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'eventCode' => [ 'model' => null, 'array' => false ],
-            'eventDateTime' => [ 'model' => null, 'array' => false ],
+            'eventCode' => [ 'model' => null, 'enum' => Enum\TransportEventEventCode::class, 'array' => false ],
+            'eventDateTime' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
     /**
-     * @var string The transport event code indicates the location of the parcel within the distribution process.
+     * @var Enum\TransportEventEventCode The transport event code indicates the location of the parcel within the
+     * distribution process.
      */
     public $eventCode;
 
diff --git a/src/Model/TransportInstruction.php b/src/Model/TransportInstruction.php
index b6f0d43..2eb56ec 100644
--- a/src/Model/TransportInstruction.php
+++ b/src/Model/TransportInstruction.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class TransportInstruction extends AbstractModel
 {
@@ -15,8 +17,8 @@ class TransportInstruction extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'transporterCode' => [ 'model' => null, 'array' => false ],
-            'trackAndTrace' => [ 'model' => null, 'array' => false ],
+            'transporterCode' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'trackAndTrace' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/UpdateDeliveryInfo.php b/src/Model/UpdateDeliveryInfo.php
index adc6b6a..fbdd535 100644
--- a/src/Model/UpdateDeliveryInfo.php
+++ b/src/Model/UpdateDeliveryInfo.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class UpdateDeliveryInfo extends AbstractModel
 {
@@ -15,7 +17,7 @@ class UpdateDeliveryInfo extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'expectedDeliveryDate' => [ 'model' => null, 'array' => false ],
+            'expectedDeliveryDate' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/UpdateLoadCarrier.php b/src/Model/UpdateLoadCarrier.php
index 45703eb..e367442 100644
--- a/src/Model/UpdateLoadCarrier.php
+++ b/src/Model/UpdateLoadCarrier.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class UpdateLoadCarrier extends AbstractModel
 {
@@ -15,7 +17,7 @@ class UpdateLoadCarrier extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'sscc' => [ 'model' => null, 'array' => false ],
+            'sscc' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/UpdateOfferPriceRequest.php b/src/Model/UpdateOfferPriceRequest.php
index 6832183..12f6422 100644
--- a/src/Model/UpdateOfferPriceRequest.php
+++ b/src/Model/UpdateOfferPriceRequest.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class UpdateOfferPriceRequest extends AbstractModel
 {
@@ -15,7 +17,7 @@ class UpdateOfferPriceRequest extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'pricing' => [ 'model' => Pricing::class, 'array' => false ],
+            'pricing' => [ 'model' => Pricing::class, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/UpdateOfferRequest.php b/src/Model/UpdateOfferRequest.php
index 8d946b2..2b8b145 100644
--- a/src/Model/UpdateOfferRequest.php
+++ b/src/Model/UpdateOfferRequest.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class UpdateOfferRequest extends AbstractModel
 {
@@ -15,10 +17,10 @@ class UpdateOfferRequest extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'reference' => [ 'model' => null, 'array' => false ],
-            'onHoldByRetailer' => [ 'model' => null, 'array' => false ],
-            'unknownProductTitle' => [ 'model' => null, 'array' => false ],
-            'fulfilment' => [ 'model' => Fulfilment::class, 'array' => false ],
+            'reference' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'onHoldByRetailer' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'unknownProductTitle' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'fulfilment' => [ 'model' => Fulfilment::class, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/UpdateOfferStockRequest.php b/src/Model/UpdateOfferStockRequest.php
index 3ae6b11..82da1b1 100644
--- a/src/Model/UpdateOfferStockRequest.php
+++ b/src/Model/UpdateOfferStockRequest.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class UpdateOfferStockRequest extends AbstractModel
 {
@@ -15,8 +17,8 @@ class UpdateOfferStockRequest extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'amount' => [ 'model' => null, 'array' => false ],
-            'managedByRetailer' => [ 'model' => null, 'array' => false ],
+            'amount' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'managedByRetailer' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/UpdateReplenishmentRequest.php b/src/Model/UpdateReplenishmentRequest.php
index 52f5b47..ce3f921 100644
--- a/src/Model/UpdateReplenishmentRequest.php
+++ b/src/Model/UpdateReplenishmentRequest.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class UpdateReplenishmentRequest extends AbstractModel
 {
@@ -15,15 +17,15 @@ class UpdateReplenishmentRequest extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'state' => [ 'model' => null, 'array' => false ],
-            'deliveryInfo' => [ 'model' => UpdateDeliveryInfo::class, 'array' => false ],
-            'numberOfLoadCarriers' => [ 'model' => null, 'array' => false ],
-            'loadCarriers' => [ 'model' => UpdateLoadCarrier::class, 'array' => true ],
+            'state' => [ 'model' => null, 'enum' => Enum\UpdateReplenishmentRequestState::class, 'array' => false ],
+            'deliveryInfo' => [ 'model' => UpdateDeliveryInfo::class, 'enum' => null, 'array' => false ],
+            'numberOfLoadCarriers' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'loadCarriers' => [ 'model' => UpdateLoadCarrier::class, 'enum' => null, 'array' => true ],
         ];
     }
 
     /**
-     * @var string Update the state of the replenishment to cancel the replenishment.
+     * @var Enum\UpdateReplenishmentRequestState Update the state of the replenishment to cancel the replenishment.
      */
     public $state;
 
diff --git a/src/Model/UpdateSubscriptionRequest.php b/src/Model/UpdateSubscriptionRequest.php
index 3fefb72..68f88f8 100644
--- a/src/Model/UpdateSubscriptionRequest.php
+++ b/src/Model/UpdateSubscriptionRequest.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class UpdateSubscriptionRequest extends AbstractModel
 {
@@ -15,8 +17,8 @@ class UpdateSubscriptionRequest extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'resources' => [ 'model' => null, 'array' => true ],
-            'url' => [ 'model' => null, 'array' => false ],
+            'resources' => [ 'model' => null, 'enum' => null, 'array' => true ],
+            'url' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/UploadReportAsset.php b/src/Model/UploadReportAsset.php
index b917ab0..f17efd3 100644
--- a/src/Model/UploadReportAsset.php
+++ b/src/Model/UploadReportAsset.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class UploadReportAsset extends AbstractModel
 {
@@ -15,11 +17,11 @@ class UploadReportAsset extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'url' => [ 'model' => null, 'array' => false ],
-            'labels' => [ 'model' => null, 'array' => true ],
-            'status' => [ 'model' => null, 'array' => false ],
-            'subStatus' => [ 'model' => null, 'array' => false ],
-            'subStatusDescription' => [ 'model' => null, 'array' => false ],
+            'url' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'labels' => [ 'model' => null, 'enum' => null, 'array' => true ],
+            'status' => [ 'model' => null, 'enum' => Enum\UploadReportAssetStatus::class, 'array' => false ],
+            'subStatus' => [ 'model' => null, 'enum' => Enum\UploadReportAssetSubStatus::class, 'array' => false ],
+            'subStatusDescription' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
@@ -34,12 +36,12 @@ public function getModelDefinition(): array
     public $labels = [];
 
     /**
-     * @var string The processing state of the submitted asset.
+     * @var Enum\UploadReportAssetStatus The processing state of the submitted asset.
      */
     public $status;
 
     /**
-     * @var string The reason code explaining why the value was rejected.
+     * @var Enum\UploadReportAssetSubStatus The reason code explaining why the value was rejected.
      */
     public $subStatus;
 
diff --git a/src/Model/UploadReportAttribute.php b/src/Model/UploadReportAttribute.php
index 30b9e3a..a5d1951 100644
--- a/src/Model/UploadReportAttribute.php
+++ b/src/Model/UploadReportAttribute.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class UploadReportAttribute extends AbstractModel
 {
@@ -15,11 +17,11 @@ class UploadReportAttribute extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'id' => [ 'model' => null, 'array' => false ],
-            'values' => [ 'model' => UploadReportValue::class, 'array' => true ],
-            'status' => [ 'model' => null, 'array' => false ],
-            'subStatus' => [ 'model' => null, 'array' => false ],
-            'subStatusDescription' => [ 'model' => null, 'array' => false ],
+            'id' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'values' => [ 'model' => UploadReportValue::class, 'enum' => null, 'array' => true ],
+            'status' => [ 'model' => null, 'enum' => Enum\UploadReportAttributeStatus::class, 'array' => false ],
+            'subStatus' => [ 'model' => null, 'enum' => Enum\UploadReportAttributeSubStatus::class, 'array' => false ],
+            'subStatusDescription' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
@@ -34,12 +36,12 @@ public function getModelDefinition(): array
     public $values = [];
 
     /**
-     * @var string The processing state of the submitted attribute.
+     * @var Enum\UploadReportAttributeStatus The processing state of the submitted attribute.
      */
     public $status;
 
     /**
-     * @var string The reason code explaining why the value was rejected.
+     * @var Enum\UploadReportAttributeSubStatus The reason code explaining why the value was rejected.
      */
     public $subStatus;
 
diff --git a/src/Model/UploadReportResponse.php b/src/Model/UploadReportResponse.php
index 22a2e3a..b695cbf 100644
--- a/src/Model/UploadReportResponse.php
+++ b/src/Model/UploadReportResponse.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class UploadReportResponse extends AbstractModel
 {
@@ -15,11 +17,11 @@ class UploadReportResponse extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'uploadId' => [ 'model' => null, 'array' => false ],
-            'language' => [ 'model' => null, 'array' => false ],
-            'status' => [ 'model' => null, 'array' => false ],
-            'attributes' => [ 'model' => UploadReportAttribute::class, 'array' => true ],
-            'assets' => [ 'model' => UploadReportAsset::class, 'array' => true ],
+            'uploadId' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'language' => [ 'model' => null, 'enum' => Enum\UploadReportResponseLanguage::class, 'array' => false ],
+            'status' => [ 'model' => null, 'enum' => Enum\UploadReportResponseStatus::class, 'array' => false ],
+            'attributes' => [ 'model' => UploadReportAttribute::class, 'enum' => null, 'array' => true ],
+            'assets' => [ 'model' => UploadReportAsset::class, 'enum' => null, 'array' => true ],
         ];
     }
 
@@ -29,12 +31,12 @@ public function getModelDefinition(): array
     public $uploadId;
 
     /**
-     * @var string The language in which content is submitted.
+     * @var Enum\UploadReportResponseLanguage The language in which content is submitted.
      */
     public $language;
 
     /**
-     * @var string The current status of the upload report.
+     * @var Enum\UploadReportResponseStatus The current status of the upload report.
      */
     public $status;
 
diff --git a/src/Model/UploadReportValue.php b/src/Model/UploadReportValue.php
index baf334d..7d29da6 100644
--- a/src/Model/UploadReportValue.php
+++ b/src/Model/UploadReportValue.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class UploadReportValue extends AbstractModel
 {
@@ -15,8 +17,8 @@ class UploadReportValue extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'value' => [ 'model' => null, 'array' => false ],
-            'unitId' => [ 'model' => null, 'array' => false ],
+            'value' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'unitId' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/Values.php b/src/Model/Values.php
index e764f6b..6594693 100644
--- a/src/Model/Values.php
+++ b/src/Model/Values.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class Values extends AbstractModel
 {
@@ -15,9 +17,9 @@ class Values extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'value' => [ 'model' => null, 'array' => false ],
-            'unitId' => [ 'model' => null, 'array' => false ],
-            'valueId' => [ 'model' => null, 'array' => false ],
+            'value' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'unitId' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'valueId' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/Model/Violation.php b/src/Model/Violation.php
index 33e2985..fa1d63b 100644
--- a/src/Model/Violation.php
+++ b/src/Model/Violation.php
@@ -2,6 +2,8 @@
 
 namespace Picqer\BolRetailerV10\Model;
 
+use Picqer\BolRetailerV10\Enum;
+
 // This class is auto generated by OpenApi\ModelGenerator
 class Violation extends AbstractModel
 {
@@ -15,8 +17,8 @@ class Violation extends AbstractModel
     public function getModelDefinition(): array
     {
         return [
-            'name' => [ 'model' => null, 'array' => false ],
-            'reason' => [ 'model' => null, 'array' => false ],
+            'name' => [ 'model' => null, 'enum' => null, 'array' => false ],
+            'reason' => [ 'model' => null, 'enum' => null, 'array' => false ],
         ];
     }
 
diff --git a/src/OpenApi/ClientGenerator.php b/src/OpenApi/ClientGenerator.php
index ec5a840..f9fb676 100644
--- a/src/OpenApi/ClientGenerator.php
+++ b/src/OpenApi/ClientGenerator.php
@@ -12,6 +12,13 @@ class ClientGenerator
         'postInbound' => 'createInbound'
     ];
 
+    protected static $overrideEnumNames = [
+        '>=' => 'GTE',
+        '<=' => 'LTE',
+        '>' => 'GT',
+        '<' => 'LT',
+    ];
+
     protected static $paramTypeMapping = [
         'array' => 'array',
         'string' => 'string',
@@ -56,8 +63,6 @@ public function generateClient()
         $code[] = '}';
         $code[] = '';
 
-        //echo implode("\n", $code);
-
         file_put_contents(__DIR__ . '/../Client.php', implode("\n", $code));
     }
 
@@ -150,7 +155,6 @@ protected function generateMethod(string $path, string $httpMethod, array &$code
         $code[] = '    }';
 
         echo "ok\n";
-        //print_r($methodDefinition);
     }
 
     protected function getType(string $ref): string
@@ -256,6 +260,12 @@ protected function extractArguments(array $methodDefinition): array
 
             if ($parameter['in'] == 'query' && isset($parameter['schema']['$ref'])) {
                 continue;
+            } elseif ($parameter['in'] == 'query' && isset($parameter['schema']['enum'])) {
+                $wrappingType = ucfirst($this->kebabCaseToCamelCase($methodDefinition['operationId'] .'-'. $parameter['name']));
+                $argument['php'] = 'Enum\\'.$wrappingType;
+                $argument['doc'] = $argument['php'];
+                $argument['name'] = $this->kebabCaseToCamelCase($parameter['name']);
+                $argument['paramName'] = $parameter['name'];
             } else {
                 $argument['php'] = static::$paramTypeMapping[$parameter['schema']['type']];
                 $argument['doc'] = $argument['php'];
@@ -272,7 +282,6 @@ protected function extractArguments(array $methodDefinition): array
                 }
             }
 
-
             // body arguments are always required, even though specs claim not
             if (! $argument['required'] && $argument['in'] != 'body') {
                 if ($argument['php'] == 'array') {
@@ -538,6 +547,20 @@ protected function getReturnType(array $responses): array
         }
     }
 
+    protected function getEnumName(string $name): string
+    {
+        $name = preg_replace('/[\-\s\/]+/', '_', $name);
+
+        if (isset(static::$overrideEnumNames[$name])) {
+            $name = static::$overrideEnumNames[$name];
+        }
+
+        // We add the first `_` for enums starting with a integer character
+        $prefix = is_numeric($name[0]) ? '_' : '';
+
+        return $prefix.strtoupper($name);
+    }
+
     protected function wrapComment(string $comment, string $linePrefix, int $maxLength = 120): string
     {
         $wordWrapped = wordwrap(strip_tags($comment), $maxLength - strlen($linePrefix));
diff --git a/src/OpenApi/ModelGenerator.php b/src/OpenApi/ModelGenerator.php
index 1f47472..c7c7dca 100644
--- a/src/OpenApi/ModelGenerator.php
+++ b/src/OpenApi/ModelGenerator.php
@@ -14,6 +14,13 @@ class ModelGenerator
         'number' => 'float'
     ];
 
+    protected static $overrideEnumNames = [
+        '>=' => 'GTE',
+        '<=' => 'LTE',
+        '>' => 'GT',
+        '<' => 'LT',
+    ];
+
     protected $specs;
 
     public function __construct()
@@ -30,6 +37,7 @@ public static function run()
     {
         $generator = new static;
         $generator->generateModels();
+        $generator->generateEnums();
     }
 
     public function generateModels(): void
@@ -39,6 +47,39 @@ public function generateModels(): void
         }
     }
 
+    public function generateEnums(): void
+    {
+        foreach ($this->specs['paths'] as $path => $methodsDef) {
+            foreach ($methodsDef as $method => $methodDef) {
+                foreach ($methodDef['parameters'] ?? [] as $parameterDef) {
+                    if (!isset($parameterDef['schema']['enum']) || !array_values(array_filter($parameterDef['schema']['enum']))) {
+                        continue;
+                    }
+
+                    $this->generateEnum(
+                        ucfirst($this->kebabCaseToCamelCase($methodDef['operationId'] .'-'. $parameterDef['name'])),
+                        static::$propTypeMapping[$parameterDef['schema']['type']],
+                        $parameterDef['schema']['enum']
+                    );
+                }
+            }
+        }
+
+        foreach ($this->specs['components']['schemas'] as $type => $modelSchema) {
+            foreach ($modelSchema['properties'] as $property => $propertyDef) {
+                if (!isset($propertyDef['enum']) || !array_values(array_filter($propertyDef['enum']))) {
+                    continue;
+                }
+
+                $this->generateEnum(
+                    ucfirst($this->kebabCaseToCamelCase($type .'-'. $property)),
+                    static::$propTypeMapping[$propertyDef['type']],
+                    $propertyDef['enum']
+                );
+            }
+        }
+    }
+
     public function generateModel($type): void
     {
         $modelSchema = $this->specs['components']['schemas'][$type];
@@ -51,12 +92,13 @@ public function generateModel($type): void
         $code[] = '';
         $code[] = sprintf('namespace %s;', $this->getModelNamespace());
         $code[] = '';
+        $code[] = sprintf('use %s;', $this->getEnumNamespace());
+        $code[] = '';
         $code[] = '// This class is auto generated by OpenApi\ModelGenerator';
         $code[] = sprintf('class %s extends AbstractModel', $type);
         $code[] = '{';
-        // TODO Add enums
-        $this->generateSchema($modelSchema, $code);
-        $this->generateFields($modelSchema, $code);
+        $this->generateSchema($type, $modelSchema, $code);
+        $this->generateFields($type, $modelSchema, $code);
         $this->generateDateTimeGetters($modelSchema, $code);
         $this->generateMonoFieldAccessors($modelSchema, $code);
         $code[] = '}';
@@ -67,7 +109,28 @@ public function generateModel($type): void
         echo "ok\n";
     }
 
-    protected function generateSchema(array $modelSchema, array &$code): void
+    public function generateEnum($name, $type, $values): void
+    {
+        echo $name . "...";
+
+        $code = [];
+        $code[] = '<?php';
+        $code[] = '';
+        $code[] = sprintf('namespace %s;', $this->getEnumNamespace());
+        $code[] = '';
+        $code[] = '// This class is auto generated by OpenApi\ModelGenerator';
+        $code[] = sprintf('enum %s: %s', $name, $type);
+        $code[] = '{';
+        $this->generateEnumFields($values, $code);
+        $code[] = '}';
+        $code[] = '';
+
+        file_put_contents(__DIR__ . '/../Enum/' . $name . '.php', implode("\n", $code));
+
+        echo "ok\n";
+    }
+
+    protected function generateSchema(string $type, array $modelSchema, array &$code): void
     {
         $code[] = '    /**';
         $code[] = '     * Returns the definition of the model: an associative array with field names as key and';
@@ -82,9 +145,10 @@ protected function generateSchema(array $modelSchema, array &$code): void
 
         foreach ($modelSchema['properties'] as $name => $propDefinition) {
             $model = 'null';
+            $enum = 'null';
             $array = 'false';
 
-            if (isset($propDefinition['type'])) {
+            if (isset($propDefinition['type']) && !isset($propDefinition['enum'])) {
                 if ($propDefinition['type'] == 'array') {
                     $array = 'true';
                     if (isset($propDefinition['items']['$ref'])) {
@@ -93,28 +157,32 @@ protected function generateSchema(array $modelSchema, array &$code): void
                 }
             } elseif (isset($propDefinition['$ref'])) {
                 $model = $this->getType($propDefinition['$ref']) . '::class';
+            }  elseif (isset($propDefinition['enum'])) {
+                $enum = 'Enum\\' . ucfirst($this->kebabCaseToCamelCase($type .'-'. $name)) . '::class';
             } else {
                 // TODO create exception class for this one
                 throw new \Exception('Unknown property definition');
             }
 
-            $code[] = sprintf('            \'%s\' => [ \'model\' => %s, \'array\' => %s ],', $this->kebabCaseToCamelCase($name), $model, $array);
+            $code[] = sprintf('            \'%s\' => [ \'model\' => %s, \'enum\' => %s, \'array\' => %s ],', $this->kebabCaseToCamelCase($name), $model, $enum, $array);
         }
 
         $code[] = '        ];';
         $code[] = '    }';
     }
 
-    protected function generateFields(array $modelSchema, array &$code): void
+    protected function generateFields(string $type, array $modelSchema, array &$code): void
     {
         foreach ($modelSchema['properties'] as $name => $propDefinition) {
-            if (isset($propDefinition['type'])) {
+            if (isset($propDefinition['type']) && !isset($propDefinition['enum'])) {
                 $propType = static::$propTypeMapping[$propDefinition['type']];
                 if ($propType == 'array' && isset($propDefinition['items']['$ref'])) {
                     $propType = $this->getType($propDefinition['items']['$ref']) . '[]';
                 }
             } elseif (isset($propDefinition['$ref'])) {
                 $propType = $this->getType($propDefinition['$ref']);
+            } elseif (isset($propDefinition['enum'])) {
+                $propType = 'Enum\\' . ucfirst($this->kebabCaseToCamelCase($type .'-'. $name));
             } else {
                 // TODO create exception class for this one
                 throw new \Exception('Unknown property definition');
@@ -139,6 +207,13 @@ protected function generateFields(array $modelSchema, array &$code): void
         }
     }
 
+    protected function generateEnumFields(array $values, array &$code): void
+    {
+        foreach ($values as $value) {
+            $code[] = sprintf('    case %s = \'%s\';', $this->getEnumName($value), $value);
+        }
+    }
+
     protected function generateDateTimeGetters(array $modelSchema, array &$code): void
     {
         foreach ($modelSchema['properties'] as $name => $propDefinition) {
@@ -272,6 +347,12 @@ protected function getModelNamespace(): string
         return $namespace . '\Model';
     }
 
+    protected function getEnumNamespace(): string
+    {
+        $namespace = substr(__NAMESPACE__, 0, strrpos(__NAMESPACE__, '\\'));
+        return $namespace . '\Enum';
+    }
+
     protected function getFieldsWithMonoFieldModelType(array $modelSchema): array
     {
         $fields = [];
@@ -330,6 +411,20 @@ protected function kebabCaseToCamelCase(string $name): string
         return implode('', $nameElems);
     }
 
+    protected function getEnumName(string $name): string
+    {
+        $name = preg_replace('/[\-\s\/]+/', '_', $name);
+
+        if (isset(static::$overrideEnumNames[$name])) {
+            $name = static::$overrideEnumNames[$name];
+        }
+
+        // We add the first `_` for enums starting with a integer character
+        $prefix = is_numeric($name[0]) ? '_' : '';
+
+        return $prefix.strtoupper($name);
+    }
+
     protected function wrapComment(string $comment, string $linePrefix, int $maxLength = 120): string
     {
         $wordWrapped = wordwrap(strip_tags($comment), $maxLength - strlen($linePrefix));
diff --git a/tests/BaseClientTest.php b/tests/BaseClientTest.php
index 5e6f9a1..d97327c 100644
--- a/tests/BaseClientTest.php
+++ b/tests/BaseClientTest.php
@@ -46,7 +46,7 @@ public function setup(): void
             public function getModelDefinition(): array
             {
                 return [
-                    'foo' => [ 'model' => null, 'array' => false ]
+                    'foo' => [ 'model' => null, 'enum' => null, 'array' => false ]
                 ];
             }
         };
@@ -665,8 +665,8 @@ public function testRequestJsonEncodesBodyModelWithoutNullValuesIntoBody()
             public function getModelDefinition(): array
             {
                 return [
-                    'foo' => [ 'model' => null, 'array' => false ],
-                    'foo2' => [ 'model' => null, 'array' => false ]
+                    'foo' => [ 'model' => null, 'enum' => null, 'array' => false ],
+                    'foo2' => [ 'model' => null, 'enum' => null, 'array' => false ]
                 ];
             }
         };
diff --git a/tests/Enum/GeneratedEnumsTest.php b/tests/Enum/GeneratedEnumsTest.php
new file mode 100644
index 0000000..6070bc8
--- /dev/null
+++ b/tests/Enum/GeneratedEnumsTest.php
@@ -0,0 +1,32 @@
+<?php
+
+namespace Picqer\BolRetailerV10\Tests\Model;
+
+use PHPUnit\Framework\TestCase;
+
+class GeneratedEnumsTest extends TestCase
+{
+    public function provideGeneratedEnumClassnames()
+    {
+        $fileNames = scandir("src/Enum");
+
+        $fileNames = array_filter($fileNames, function ($fileName) {
+            return ! in_array($fileName, ['.', '..']);
+        });
+
+        return array_map(function ($fileName) {
+            return ['Picqer\\BolRetailerV10\\Enum\\' . substr($fileName, 0, -4)];
+        }, $fileNames);
+    }
+
+    /**
+     * @dataProvider provideGeneratedEnumClassnames
+     */
+    public function testGeneratedEnumCanBeInstantiated(string $enumClassname)
+    {
+        $cases = $enumClassname::cases();
+        $this->assertIsArray($cases);
+        $this->assertNotNull($cases);
+        $this->assertInstanceOf(\UnitEnum::class, $cases[0]);
+    }
+}
diff --git a/tests/Model/AbstractModelTest.php b/tests/Model/AbstractModelTest.php
index 586dcd4..d4174c5 100644
--- a/tests/Model/AbstractModelTest.php
+++ b/tests/Model/AbstractModelTest.php
@@ -15,7 +15,7 @@ public function testScalarIsSetFromArray()
             public function getModelDefinition(): array
             {
                 return [
-                    'foo' => [ 'model' => null, 'array' => false ]
+                    'foo' => [ 'model' => null, 'enum' => null, 'array' => false ]
                 ];
             }
         };
@@ -47,7 +47,7 @@ public function testValidAbsentFieldIsUntouchedInModelFromArray()
             public function getModelDefinition(): array
             {
                 return [
-                    'foo' => [ 'model' => null, 'array' => true ]
+                    'foo' => [ 'model' => null, 'enum' => null, 'array' => true ]
                 ];
             }
         };
@@ -65,7 +65,7 @@ public function testRelatedModelIsCreatedFromArray()
             public function getModelDefinition(): array
             {
                 return [
-                    'foo' => [ 'model' => null, 'array' => false ]
+                    'foo' => [ 'model' => null, 'enum' => null, 'array' => false ]
                 ];
             }
         };
@@ -85,7 +85,7 @@ public function __construct($relationStubClass = null)
             public function getModelDefinition(): array
             {
                 return [
-                    'relation' => [ 'model' => $this->relationStubClass, 'array' => false ]
+                    'relation' => [ 'model' => $this->relationStubClass, 'enum' => null, 'array' => false ]
                 ];
             }
         };
@@ -122,7 +122,7 @@ public function testRelatedModelArrayIsCreatedFromArray()
             public function getModelDefinition(): array
             {
                 return [
-                    'foo' => [ 'model' => null, 'array' => false ]
+                    'foo' => [ 'model' => null, 'enum' => null, 'array' => false ]
                 ];
             }
         };
@@ -142,7 +142,7 @@ public function __construct($relationStubClass = null)
             public function getModelDefinition(): array
             {
                 return [
-                    'relations' => [ 'model' => $this->relationStubClass, 'array' => true ]
+                    'relations' => [ 'model' => $this->relationStubClass, 'enum' => null, 'array' => true ]
                 ];
             }
         };
@@ -167,7 +167,7 @@ public function testNonNullScalarFieldIsPresentInArray()
             public function getModelDefinition(): array
             {
                 return [
-                    'foo' => [ 'model' => null, 'array' => false ]
+                    'foo' => [ 'model' => null, 'enum' => null, 'array' => false ]
                 ];
             }
         };
@@ -185,7 +185,7 @@ public function testNullFieldIsOmittedFromArray()
             public function getModelDefinition(): array
             {
                 return [
-                    'foo' => [ 'model' => null, 'array' => false ]
+                    'foo' => [ 'model' => null, 'enum' => null, 'array' => false ]
                 ];
             }
         };
@@ -201,7 +201,7 @@ public function testNullFieldIsPresentInArray()
             public function getModelDefinition(): array
             {
                 return [
-                    'foo' => [ 'model' => null, 'array' => false ]
+                    'foo' => [ 'model' => null, 'enum' => null, 'array' => false ]
                 ];
             }
         };
@@ -217,7 +217,7 @@ public function testModelFieldIsPresentInArray()
             public function getModelDefinition(): array
             {
                 return [
-                    'foo' => [ 'model' => null, 'array' => false ]
+                    'foo' => [ 'model' => null, 'enum' => null, 'array' => false ]
                 ];
             }
         };
@@ -237,7 +237,7 @@ public function __construct($relationStubClass = null)
             public function getModelDefinition(): array
             {
                 return [
-                    'relation' => [ 'model' => $this->relationStubClass, 'array' => false ]
+                    'relation' => [ 'model' => $this->relationStubClass, 'enum' => null, 'array' => false ]
                 ];
             }
         };
@@ -256,7 +256,7 @@ public function testModelArrayFieldIsPresentInArray()
             public function getModelDefinition(): array
             {
                 return [
-                    'foo' => [ 'model' => null, 'array' => false ]
+                    'foo' => [ 'model' => null, 'enum' => null, 'array' => false ]
                 ];
             }
         };
@@ -276,7 +276,7 @@ public function __construct($relationStubClass = null)
             public function getModelDefinition(): array
             {
                 return [
-                    'relations' => [ 'model' => $this->relationStubClass, 'array' => true ]
+                    'relations' => [ 'model' => $this->relationStubClass, 'enum' => null, 'array' => true ]
                 ];
             }
         };
@@ -300,7 +300,7 @@ public function testArrayIndicesAreSanitized()
             public function getModelDefinition(): array
             {
                 return [
-                    'foo' => [ 'model' => null, 'array' => false ]
+                    'foo' => [ 'model' => null, 'enum' => null, 'array' => false ]
                 ];
             }
         };
@@ -320,7 +320,7 @@ public function __construct($relationStubClass = null)
             public function getModelDefinition(): array
             {
                 return [
-                    'relations' => [ 'model' => $this->relationStubClass, 'array' => true ]
+                    'relations' => [ 'model' => $this->relationStubClass, 'enum' => null, 'array' => true ]
                 ];
             }
         };