[Bug]: Valid config keys have changed in V2

[juliuslipp]

What happened?

An annoying pydantic warning triggered by:

litellm/litellm/types/integrations/prometheus.py

Line 224 in f1540ce

fields = {

Would be amazing if you could fix this.

Relevant log output

/pydantic/_internal/_config.py:345: UserWarning: Valid config keys have changed in V2:
* 'fields' has been removed
  warnings.warn(message, UserWarning)

Are you a ML Ops Team?

No

What LiteLLM version are you on ?

latest

Twitter / LinkedIn details

No response

[lsorber]

I suspect this is caused by the changes introduced in v1.56.2 with #7421, where you can see the following in litellm/types/integrations/prometheus.py:

class UserAPIKeyLabelValues(BaseModel):
    end_user: Optional[str] = None
    user: Optional[str] = None
    hashed_api_key: Optional[str] = None
    api_key_alias: Optional[str] = None
    team: Optional[str] = None
    team_alias: Optional[str] = None
    requested_model: Optional[str] = None
    model: Optional[str] = None
    litellm_model_name: Optional[str] = None
    tags: List[str] = []
    model_id: Optional[str] = None
    api_base: Optional[str] = None
    api_provider: Optional[str] = None
    exception_status: Optional[str] = None
    exception_class: Optional[str] = None
    status_code: Optional[str] = None

    class Config:
        fields = {
            "end_user": {"alias": UserAPIKeyLabelNames.END_USER},
            "user": {"alias": UserAPIKeyLabelNames.USER},
            "hashed_api_key": {"alias": UserAPIKeyLabelNames.API_KEY_HASH},
            "api_key_alias": {"alias": UserAPIKeyLabelNames.API_KEY_ALIAS},
            "team": {"alias": UserAPIKeyLabelNames.TEAM},
            "team_alias": {"alias": UserAPIKeyLabelNames.TEAM_ALIAS},
            "requested_model": {"alias": UserAPIKeyLabelNames.REQUESTED_MODEL},
            "model": {"alias": UserAPIKeyLabelNames.v1_LITELLM_MODEL_NAME},
            "litellm_model_name": {"alias": UserAPIKeyLabelNames.v2_LITELLM_MODEL_NAME},
            "model_id": {"alias": UserAPIKeyLabelNames.MODEL_ID},
            "api_base": {"alias": UserAPIKeyLabelNames.API_BASE},
            "api_provider": {"alias": UserAPIKeyLabelNames.API_PROVIDER},
            "exception_status": {"alias": UserAPIKeyLabelNames.EXCEPTION_STATUS},
            "exception_class": {"alias": UserAPIKeyLabelNames.EXCEPTION_CLASS},
            "status_code": {"alias": UserAPIKeyLabelNames.STATUS_CODE},
        }

[gouzhuang]

same issue. reverted back to 1.55.12 as a workaround.

[nbrosse]

Same issue.