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_create_function_message() — langchain Function Reference

Architecture documentation for the _create_function_message() function in agents.py from the langchain codebase.

Function python CoreAbstractions MessageSchema called by 1

Entity Profile

Dependency Diagram

graph TD
  593439c1_f9b5_edba_6209_abdef7d391c0["_create_function_message()"]
  81828515_0fcd_6cb4_96b8_62d4fca3e4ff["agents.py"]
  593439c1_f9b5_edba_6209_abdef7d391c0 -->|defined in| 81828515_0fcd_6cb4_96b8_62d4fca3e4ff
  0d0b2a68_5fb9_b032_2c8a_7cfb43c20f43["_convert_agent_observation_to_messages()"]
  0d0b2a68_5fb9_b032_2c8a_7cfb43c20f43 -->|calls| 593439c1_f9b5_edba_6209_abdef7d391c0
  style 593439c1_f9b5_edba_6209_abdef7d391c0 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/langchain_core/agents.py lines 234–256

def _create_function_message(
    agent_action: AgentAction, observation: Any
) -> FunctionMessage:
    """Convert agent action and observation into a function message.

    Args:
        agent_action: the tool invocation request from the agent.
        observation: the result of the tool invocation.

    Returns:
        `FunctionMessage` that corresponds to the original tool invocation.
    """
    if not isinstance(observation, str):
        try:
            content = json.dumps(observation, ensure_ascii=False)
        except Exception:
            content = str(observation)
    else:
        content = observation
    return FunctionMessage(
        name=agent_action.tool,
        content=content,
    )

Domain

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Defined In

Called By

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Frequently Asked Questions

What does _create_function_message() do?
_create_function_message() is a function in the langchain codebase, defined in libs/core/langchain_core/agents.py.
Where is _create_function_message() defined?
_create_function_message() is defined in libs/core/langchain_core/agents.py at line 234.
What calls _create_function_message()?
_create_function_message() is called by 1 function(s): _convert_agent_observation_to_messages.

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