validate_prompt_input_variables() — langchain Function Reference

Architecture documentation for the validate_prompt_input_variables() function in summary.py from the langchain codebase.

Function python LangChainCore ApiManagement

Entity Profile

LangChainCore→ ApiManagement→ validate_prompt_input_variables() — langchain Function Reference

Dependency Diagram

graph TD
  dfcad673_e3be_4c35_cabe_c563aa9e1ab2["validate_prompt_input_variables()"]
  896d889a_d228_6c16_6cdd_5799f6e5f307["ConversationSummaryMemory"]
  dfcad673_e3be_4c35_cabe_c563aa9e1ab2 -->|defined in| 896d889a_d228_6c16_6cdd_5799f6e5f307
  style dfcad673_e3be_4c35_cabe_c563aa9e1ab2 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/langchain/langchain_classic/memory/summary.py lines 145–155

    def validate_prompt_input_variables(cls, values: dict) -> dict:
        """Validate that prompt input variables are consistent."""
        prompt_variables = values["prompt"].input_variables
        expected_keys = {"summary", "new_lines"}
        if expected_keys != set(prompt_variables):
            msg = (
                "Got unexpected prompt input variables. The prompt expects "
                f"{prompt_variables}, but it should have {expected_keys}."
            )
            raise ValueError(msg)
        return values