[Bug]:

[mbrisson-ivadolabs]

What happened?

We are currently having a user warning when we start our application using litellm.

.venv/lib/python3.13/site-packages/pydantic/_internal/_config.py:345: UserWarning: Valid config keys have changed in V2:

• 'fields' has been removed
  warnings.warn(message, UserWarning)

Adding a break point in pydantic _config.py file row 345, the input config_dict raising the warning is from UserAPIKeyLabelNames class

And going up the call stack it goes to the file litellm/types/integrations/prometheus.py:203

Where we can see class UserAPIKeyLabelValues using pydantic Config fields causing the warning

Relevant log output

`config_dict = {dict: 1} {'fields': {'api_base': {'alias': <UserAPIKeyLabelNames.API_BASE: 'api_base'>}, 'api_key_alias': {'alias': <UserAPIKeyLabelNames.API_KEY_ALIAS: 'api_key_alias'>}, 'api_provider': {'alias': <UserAPIKeyLabelNames.API_PROVIDER: 'api_provider'>}, 'end_user': {
 'fields' = {dict: 16} {'api_base': {'alias': <UserAPIKeyLabelNames.API_BASE: 'api_base'>}, 'api_key_alias': {'alias': <UserAPIKeyLabelNames.API_KEY_ALIAS: 'api_key_alias'>}, 'api_provider': {'alias': <UserAPIKeyLabelNames.API_PROVIDER: 'api_provider'>}, 'end_user': {'alias': <UserAPIKeyLabelNames.END_USER: 'end_user'>}, 'exception_class': {'alias': <UserAPIKeyLabelNames.EXCEPTION_CLASS: 'exception_class'>}, 'exception_status': {'alias': <UserAPIKeyLabelNames.EXCEPTION_STATUS: 'exception_status'>}, 'fallback_model': {'alias': <UserAPIKeyLabelNames.FALLBACK_MODEL: 'fallback_model'>}, 'hashed_api_key': {'alias': <UserAPIKeyLabelNames.API_KEY_HASH: 'hashed_api_key'>}, 'litellm_model_name': {'alias': <UserAPIKeyLabelNames.v2_LITELLM_MODEL_NAME: 'litellm_model_name'>}, 'model': {'alias': <UserAPIKeyLabelNames.v1_LITELLM_MODEL_NAME: 'model'>}, 'model_id': {'alias': <UserAPIKeyLabelNames.MODEL_ID: 'model_id'>}, 'requested_model': {'alias': <UserAPIKeyLabelNames.REQUESTED_MODEL: 'requested_model'>}, 'status_code': {...
  'end_user' = {dict: 1} {'alias': <UserAPIKeyLabelNames.END_USER: 'end_user'>}
  'user' = {dict: 1} {'alias': <UserAPIKeyLabelNames.USER: 'user'>}
  'hashed_api_key' = {dict: 1} {'alias': <UserAPIKeyLabelNames.API_KEY_HASH: 'hashed_api_key'>}
  'api_key_alias' = {dict: 1} {'alias': <UserAPIKeyLabelNames.API_KEY_ALIAS: 'api_key_alias'>}
  'team' = {dict: 1} {'alias': <UserAPIKeyLabelNames.TEAM: 'team'>}
  'team_alias' = {dict: 1} {'alias': <UserAPIKeyLabelNames.TEAM_ALIAS: 'team_alias'>}
  'requested_model' = {dict: 1} {'alias': <UserAPIKeyLabelNames.REQUESTED_MODEL: 'requested_model'>}
  'model' = {dict: 1} {'alias': <UserAPIKeyLabelNames.v1_LITELLM_MODEL_NAME: 'model'>}
  'litellm_model_name' = {dict: 1} {'alias': <UserAPIKeyLabelNames.v2_LITELLM_MODEL_NAME: 'litellm_model_name'>}
  'model_id' = {dict: 1} {'alias': <UserAPIKeyLabelNames.MODEL_ID: 'model_id'>}
  'api_base' = {dict: 1} {'alias': <UserAPIKeyLabelNames.API_BASE: 'api_base'>}
  'api_provider' = {dict: 1} {'alias': <UserAPIKeyLabelNames.API_PROVIDER: 'api_provider'>}
  'exception_status' = {dict: 1} {'alias': <UserAPIKeyLabelNames.EXCEPTION_STATUS: 'exception_status'>}
  'exception_class' = {dict: 1} {'alias': <UserAPIKeyLabelNames.EXCEPTION_CLASS: 'exception_class'>}
  'status_code' = {dict: 1} {'alias': <UserAPIKeyLabelNames.STATUS_CODE: 'status_code'>}
  'fallback_model' = {dict: 1} {'alias': <UserAPIKeyLabelNames.FALLBACK_MODEL: 'fallback_model'>}`

Are you a ML Ops Team?

No

What LiteLLM version are you on ?

v1.58.2

Twitter / LinkedIn details

No response