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_validate_tool_call_message() — langchain Function Reference

Architecture documentation for the _validate_tool_call_message() function in chat_models.py from the langchain codebase.

Function python LangChainCore LanguageModelBase called by 2

Entity Profile

Dependency Diagram

graph TD
  873906e7_1aac_f857_fbc7_973f8d33d1de["_validate_tool_call_message()"]
  c97ed773_97f8_2190_c0e8_546293fe345b["chat_models.py"]
  873906e7_1aac_f857_fbc7_973f8d33d1de -->|defined in| c97ed773_97f8_2190_c0e8_546293fe345b
  d8558ca0_4956_161f_b284_039f6f9cdfd3["test_tool_calling()"]
  d8558ca0_4956_161f_b284_039f6f9cdfd3 -->|calls| 873906e7_1aac_f857_fbc7_973f8d33d1de
  ea8f4255_67c7_7352_2219_71761cc9609d["test_tool_calling_async()"]
  ea8f4255_67c7_7352_2219_71761cc9609d -->|calls| 873906e7_1aac_f857_fbc7_973f8d33d1de
  style 873906e7_1aac_f857_fbc7_973f8d33d1de fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/standard-tests/langchain_tests/integration_tests/chat_models.py lines 112–129

def _validate_tool_call_message(message: BaseMessage) -> None:
    assert isinstance(message, AIMessage)
    assert len(message.tool_calls) == 1

    tool_call = message.tool_calls[0]
    assert tool_call["name"] == "magic_function"
    assert tool_call["args"] == {"input": 3}
    assert tool_call["id"] is not None
    assert tool_call.get("type") == "tool_call"

    content_tool_calls = [
        block for block in message.content_blocks if block["type"] == "tool_call"
    ]
    assert len(content_tool_calls) == 1
    content_tool_call = content_tool_calls[0]
    assert content_tool_call["name"] == "magic_function"
    assert content_tool_call["args"] == {"input": 3}
    assert content_tool_call["id"] is not None

Domain

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Defined In

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Source

Frequently Asked Questions

What does _validate_tool_call_message() do?
_validate_tool_call_message() is a function in the langchain codebase, defined in libs/standard-tests/langchain_tests/integration_tests/chat_models.py.
Where is _validate_tool_call_message() defined?
_validate_tool_call_message() is defined in libs/standard-tests/langchain_tests/integration_tests/chat_models.py at line 112.
What calls _validate_tool_call_message()?
_validate_tool_call_message() is called by 2 function(s): test_tool_calling, test_tool_calling_async.

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