get_format_instructions() — langchain Function Reference

Architecture documentation for the get_format_instructions() function in combining.py from the langchain codebase.

Function python OutputParsing StreamingParsers

Entity Profile

OutputParsing→ StreamingParsers→ get_format_instructions() — langchain Function Reference

Dependency Diagram

graph TD
  55b88d9a_a080_c1a3_8c08_29993b47474a["get_format_instructions()"]
  f373b1cd_1b87_d3b3_7e97_939ce0c3ce4d["CombiningOutputParser"]
  55b88d9a_a080_c1a3_8c08_29993b47474a -->|defined in| f373b1cd_1b87_d3b3_7e97_939ce0c3ce4d
  style 55b88d9a_a080_c1a3_8c08_29993b47474a fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/langchain/langchain_classic/output_parsers/combining.py lines 43–50

    def get_format_instructions(self) -> str:
        """Instructions on how the LLM output should be formatted."""
        initial = f"For your first output: {self.parsers[0].get_format_instructions()}"
        subsequent = "\n".join(
            f"Complete that output fully. Then produce another output, separated by two newline characters: {p.get_format_instructions()}"  # noqa: E501
            for p in self.parsers[1:]
        )
        return f"{initial}\n{subsequent}"