diff --git a/docs/api.md b/docs/api.md
index 0d3b392..089e1e3 100644
--- a/docs/api.md
+++ b/docs/api.md
@@ -10,9 +10,6 @@ Generates a new parser that consumes the input string using the specified regula
 
 ## P.alt(parsers: Parser[]): Parser
 
-## P.option(parser: Parser): Parser
-Generates a new parser that returns null even if the match fails.
-
 ## P.notMatch(parser: Parser): Parser
 Generates a new parser to continue if the match fails.
 The generated parser does not consume input.
@@ -26,6 +23,8 @@ The generated parser does not consume input.
 
 ## P.lf
 
+## P.newline
+
 
 # Parser APIs
 
@@ -35,7 +34,10 @@ The generated parser does not consume input.
 
 ## parser.many(min: number): Parser
 
-## parser.sep1(separator: Parser): Parser
+## parser.sep(separator: Parser, min: number): Parser
+
+## parser.option(): Parser
+Generates a new parser that returns null even if the match fails.
 
 
 # Other APIs
diff --git a/examples/json/package.json b/examples/json/package.json
index 0a3f7d5..c87ce37 100644
--- a/examples/json/package.json
+++ b/examples/json/package.json
@@ -12,6 +12,6 @@
     "typescript": "4.7.4"
   },
   "dependencies": {
-    "terrario": "0.2.0"
+    "terrario": "0.3.0"
   }
 }
diff --git a/examples/json/src/index.ts b/examples/json/src/index.ts
index 6f66207..c633b07 100644
--- a/examples/json/src/index.ts
+++ b/examples/json/src/index.ts
@@ -55,7 +55,7 @@ const lang = P.createLanguage({
 		return P.seq([
 			P.str('{'),
 			spaces,
-			P.option(entry.sep1(separator)),
+			entry.sep(separator, 1).option(),
 			spaces,
 			P.str('}'),
 		], 2).map((value: { key: string, value: unknown }[] | null) => {
@@ -79,7 +79,7 @@ const lang = P.createLanguage({
 		return P.seq([
 			P.str('['),
 			spaces,
-			P.option(r.value.sep1(separator)),
+			r.value.sep(separator, 1).option(),
 			spaces,
 			P.str(']'),
 		], 2).map((value: unknown[] | null) => {