langchain/output_parsers/fix.py/OutputFixingParser/parse
class OutputFixingParser:    def parse(self, completion: str) -> T:
        try:
            parsed_completion = self.parser.parse(completion)
        except OutputParserException as e:
            new_completion = self.retry_chain.run(
                instructions=self.parser.get_format_instructions(),
                completion=completion,
                error=repr(e),
            )
            parsed_completion = self.parser.parse(new_completion)

        return parsed_completion