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_prepare_output() — langchain Function Reference

Architecture documentation for the _prepare_output() function in eval_chain.py from the langchain codebase.

Function python LangChainCore ApiManagement calls 2 called by 3

Entity Profile

Dependency Diagram

graph TD
  a793cd45_183a_2ae3_7247_435d172fa959["_prepare_output()"]
  6b783916_2e41_8d2a_dba2_81813096b7c4["ContextQAEvalChain"]
  a793cd45_183a_2ae3_7247_435d172fa959 -->|defined in| 6b783916_2e41_8d2a_dba2_81813096b7c4
  c8ae767c_58c1_d764_8793_0d3dfcb69a27["_prepare_output()"]
  c8ae767c_58c1_d764_8793_0d3dfcb69a27 -->|calls| a793cd45_183a_2ae3_7247_435d172fa959
  58783571_5c52_7ea5_40a4_0d8f9c7e8705["_evaluate_strings()"]
  58783571_5c52_7ea5_40a4_0d8f9c7e8705 -->|calls| a793cd45_183a_2ae3_7247_435d172fa959
  7a5c12d7_b3b4_1088_a716_41cad10390dc["_aevaluate_strings()"]
  7a5c12d7_b3b4_1088_a716_41cad10390dc -->|calls| a793cd45_183a_2ae3_7247_435d172fa959
  c8ae767c_58c1_d764_8793_0d3dfcb69a27["_prepare_output()"]
  a793cd45_183a_2ae3_7247_435d172fa959 -->|calls| c8ae767c_58c1_d764_8793_0d3dfcb69a27
  b91be59a_7ef5_038f_5ebf_96d2d077aa5f["_parse_string_eval_output()"]
  a793cd45_183a_2ae3_7247_435d172fa959 -->|calls| b91be59a_7ef5_038f_5ebf_96d2d077aa5f
  style a793cd45_183a_2ae3_7247_435d172fa959 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/langchain/langchain_classic/evaluation/qa/eval_chain.py lines 303–307

    def _prepare_output(self, result: dict) -> dict:
        parsed_result = _parse_string_eval_output(result[self.output_key])
        if RUN_KEY in result:
            parsed_result[RUN_KEY] = result[RUN_KEY]
        return parsed_result

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Defined In

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Called By

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Frequently Asked Questions

What does _prepare_output() do?
_prepare_output() is a function in the langchain codebase, defined in libs/langchain/langchain_classic/evaluation/qa/eval_chain.py.
Where is _prepare_output() defined?
_prepare_output() is defined in libs/langchain/langchain_classic/evaluation/qa/eval_chain.py at line 303.
What does _prepare_output() call?
_prepare_output() calls 2 function(s): _parse_string_eval_output, _prepare_output.
What calls _prepare_output()?
_prepare_output() is called by 3 function(s): _aevaluate_strings, _evaluate_strings, _prepare_output.

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