_ForwardRefAnnotatedTool Class — langchain Architecture

Architecture documentation for the _ForwardRefAnnotatedTool class in test_tools.py from the langchain codebase.

Class python

Entity Profile

Dependency Diagram

graph TD
  0350cbc9_221a_4972_186f_f823f5cea0c1["_ForwardRefAnnotatedTool"]
  18e85ff8_9a5d_f800_f722_027398dc89e7["BaseTool"]
  0350cbc9_221a_4972_186f_f823f5cea0c1 -->|extends| 18e85ff8_9a5d_f800_f722_027398dc89e7
  8e7836ae_e72c_f670_72a5_4ca6d46e3555["test_tools.py"]
  0350cbc9_221a_4972_186f_f823f5cea0c1 -->|defined in| 8e7836ae_e72c_f670_72a5_4ca6d46e3555
  7baa1be9_f5a7_d6a0_16b8_d9052a82fd9a["_run()"]
  0350cbc9_221a_4972_186f_f823f5cea0c1 -->|method| 7baa1be9_f5a7_d6a0_16b8_d9052a82fd9a
  249fd80e_5f87_7fba_02bc_355b586df2fa["_arun()"]
  0350cbc9_221a_4972_186f_f823f5cea0c1 -->|method| 249fd80e_5f87_7fba_02bc_355b586df2fa

Relationship Graph

Source Code

libs/core/tests/unit_tests/test_tools.py lines 163–175

    class _ForwardRefAnnotatedTool(BaseTool):
        name: str = "structured_api"
        args_schema: "type[BaseModel]" = _MockSchema
        description: str = "A Structured Tool"

        @override
        def _run(self, *, arg1: int, arg2: bool, arg3: dict | None = None) -> str:
            return f"{arg1} {arg2} {arg3}"

        async def _arun(
            self, *, arg1: int, arg2: bool, arg3: dict | None = None
        ) -> str:
            raise NotImplementedError