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FinishedOutputParser Class — langchain Architecture

Architecture documentation for the FinishedOutputParser class in prompts.py from the langchain codebase.

Class python

Entity Profile

Dependency Diagram

graph TD
  96b6055b_5824_f580_a75e_2ff927edc582["FinishedOutputParser"]
  c4578981_52fe_d7f9_385b_bf23d656ec0b["prompts.py"]
  96b6055b_5824_f580_a75e_2ff927edc582 -->|defined in| c4578981_52fe_d7f9_385b_bf23d656ec0b
  b56c7926_c7a8_ee7d_f660_7d8110d13ec8["parse()"]
  96b6055b_5824_f580_a75e_2ff927edc582 -->|method| b56c7926_c7a8_ee7d_f660_7d8110d13ec8

Relationship Graph

Source Code

libs/langchain/langchain_classic/chains/flare/prompts.py lines 6–16

class FinishedOutputParser(BaseOutputParser[tuple[str, bool]]):
    """Output parser that checks if the output is finished."""

    finished_value: str = "FINISHED"
    """Value that indicates the output is finished."""

    @override
    def parse(self, text: str) -> tuple[str, bool]:
        cleaned = text.strip()
        finished = self.finished_value in cleaned
        return cleaned.replace(self.finished_value, ""), finished

Defined In

Source

Frequently Asked Questions

What is the FinishedOutputParser class?
FinishedOutputParser is a class in the langchain codebase, defined in libs/langchain/langchain_classic/chains/flare/prompts.py.
Where is FinishedOutputParser defined?
FinishedOutputParser is defined in libs/langchain/langchain_classic/chains/flare/prompts.py at line 6.

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