_make_tools_invocation() — langchain Function Reference

Source Code

libs/langchain/tests/unit_tests/agents/test_agent.py lines 995–1018

def _make_tools_invocation(name_to_arguments: dict[str, dict[str, Any]]) -> AIMessage:
    """Create an AIMessage that represents a tools invocation.

    Args:
        name_to_arguments: A dictionary mapping tool names to an invocation.

    Returns:
        AIMessage that represents a request to invoke a tool.
    """
    raw_tool_calls = [
        {"function": {"name": name, "arguments": json.dumps(arguments)}, "id": str(idx)}
        for idx, (name, arguments) in enumerate(name_to_arguments.items())
    ]
    tool_calls = [
        ToolCall(name=name, args=args, id=str(idx), type="tool_call")
        for idx, (name, args) in enumerate(name_to_arguments.items())
    ]
    return AIMessage(
        content="",
        additional_kwargs={
            "tool_calls": raw_tool_calls,
        },
        tool_calls=tool_calls,
    )