langchain_core() — langchain Function Reference

Architecture documentation for the langchain_core() function in __init__.py from the langchain codebase.

Function python CoreAbstractions Serialization

Entity Profile

CoreAbstractions→ Serialization→ langchain_core() — langchain Function Reference

Dependency Diagram

graph TD
  c231538f_3eb8_e8af_fe5d_b97e94b5523e["langchain_core()"]
  33c94418_796f_ec6a_2e56_9a1d403832ff["__init__.py"]
  c231538f_3eb8_e8af_fe5d_b97e94b5523e -->|defined in| 33c94418_796f_ec6a_2e56_9a1d403832ff
  style c231538f_3eb8_e8af_fe5d_b97e94b5523e fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/langchain_core/callbacks/__init__.py lines 8–47

    from langchain_core.callbacks.base import (
        AsyncCallbackHandler,
        BaseCallbackHandler,
        BaseCallbackManager,
        CallbackManagerMixin,
        Callbacks,
        ChainManagerMixin,
        LLMManagerMixin,
        RetrieverManagerMixin,
        RunManagerMixin,
        ToolManagerMixin,
    )
    from langchain_core.callbacks.file import FileCallbackHandler
    from langchain_core.callbacks.manager import (
        AsyncCallbackManager,
        AsyncCallbackManagerForChainGroup,
        AsyncCallbackManagerForChainRun,
        AsyncCallbackManagerForLLMRun,
        AsyncCallbackManagerForRetrieverRun,
        AsyncCallbackManagerForToolRun,
        AsyncParentRunManager,
        AsyncRunManager,
        BaseRunManager,
        CallbackManager,
        CallbackManagerForChainGroup,
        CallbackManagerForChainRun,
        CallbackManagerForLLMRun,
        CallbackManagerForRetrieverRun,
        CallbackManagerForToolRun,
        ParentRunManager,
        RunManager,
        adispatch_custom_event,
        dispatch_custom_event,
    )
    from langchain_core.callbacks.stdout import StdOutCallbackHandler
    from langchain_core.callbacks.streaming_stdout import StreamingStdOutCallbackHandler
    from langchain_core.callbacks.usage import (
        UsageMetadataCallbackHandler,
        get_usage_metadata_callback,
    )