is_basemodel_instance() — langchain Function Reference

Architecture documentation for the is_basemodel_instance() function in pydantic.py from the langchain codebase.

Function python Observability CallbackManager calls 1 called by 1

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Observability→ CallbackManager→ is_basemodel_instance() — langchain Function Reference

Dependency Diagram

graph TD
  fb02f718_8eea_0245_8374_c6632ae75615["is_basemodel_instance()"]
  892b1d9f_bb87_0364_19af_71382204e430["pydantic.py"]
  fb02f718_8eea_0245_8374_c6632ae75615 -->|defined in| 892b1d9f_bb87_0364_19af_71382204e430
  fb02f718_8eea_0245_8374_c6632ae75615["is_basemodel_instance()"]
  fb02f718_8eea_0245_8374_c6632ae75615 -->|calls| fb02f718_8eea_0245_8374_c6632ae75615
  fb02f718_8eea_0245_8374_c6632ae75615["is_basemodel_instance()"]
  fb02f718_8eea_0245_8374_c6632ae75615 -->|calls| fb02f718_8eea_0245_8374_c6632ae75615
  style fb02f718_8eea_0245_8374_c6632ae75615 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/langchain_core/utils/pydantic.py lines 114–125

def is_basemodel_instance(obj: Any) -> bool:
    """Check if the given class is an instance of Pydantic `BaseModel`.

    Check if the given class is an instance of any of the following:

    * `pydantic.BaseModel` in Pydantic 2.x
    * `pydantic.v1.BaseModel` in Pydantic 2.x

    Returns:
        `True` if the given class is an instance of Pydantic `BaseModel`.
    """
    return isinstance(obj, (BaseModel, BaseModelV1))