init() — langchain Function Reference

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

Function python LangChainCore ApiManagement

Entity Profile

LangChainCore→ ApiManagement→ __init__() — langchain Function Reference

Dependency Diagram

graph TD
  b6aaa613_5bca_34be_c082_689cacd3617e["__init__()"]
  81c4b461_b90b_e57e_6c0f_02a237e01142["MultipleStructuredOutputsError"]
  b6aaa613_5bca_34be_c082_689cacd3617e -->|defined in| 81c4b461_b90b_e57e_6c0f_02a237e01142
  style b6aaa613_5bca_34be_c082_689cacd3617e fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/langchain_v1/langchain/agents/structured_output.py lines 44–57

    def __init__(self, tool_names: list[str], ai_message: AIMessage) -> None:
        """Initialize `MultipleStructuredOutputsError`.

        Args:
            tool_names: The names of the tools called for structured output.
            ai_message: The AI message that contained the invalid multiple tool calls.
        """
        self.tool_names = tool_names
        self.ai_message = ai_message

        super().__init__(
            "Model incorrectly returned multiple structured responses "
            f"({', '.join(tool_names)}) when only one is expected."
        )