aformat_messages() — langchain Function Reference

Architecture documentation for the aformat_messages() function in few_shot.py from the langchain codebase.

Function python PromptManagement ExampleSelection calls 1 called by 1

Entity Profile

PromptManagement→ ExampleSelection→ aformat_messages() — langchain Function Reference

Dependency Diagram

graph TD
  78e3126b_cc62_5242_f3ac_7483d87d3eed["aformat_messages()"]
  6d3822e2_4874_c820_71b3_b49073208692["FewShotChatMessagePromptTemplate"]
  78e3126b_cc62_5242_f3ac_7483d87d3eed -->|defined in| 6d3822e2_4874_c820_71b3_b49073208692
  b7b7112d_a9d5_26c4_6a42_307d742439c3["aformat()"]
  b7b7112d_a9d5_26c4_6a42_307d742439c3 -->|calls| 78e3126b_cc62_5242_f3ac_7483d87d3eed
  3ee810fc_b399_3193_12c6_df9e9ebb7ffd["_aget_examples()"]
  78e3126b_cc62_5242_f3ac_7483d87d3eed -->|calls| 3ee810fc_b399_3193_12c6_df9e9ebb7ffd
  style 78e3126b_cc62_5242_f3ac_7483d87d3eed fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/langchain_core/prompts/few_shot.py lines 411–430

    async def aformat_messages(self, **kwargs: Any) -> list[BaseMessage]:
        """Async format kwargs into a list of messages.

        Args:
            **kwargs: Keyword arguments to use for filling in templates in messages.

        Returns:
            A list of formatted messages with all template variables filled in.
        """
        # Get the examples to use.
        examples = await self._aget_examples(**kwargs)
        examples = [
            {k: e[k] for k in self.example_prompt.input_variables} for e in examples
        ]
        # Format the examples.
        return [
            message
            for example in examples
            for message in await self.example_prompt.aformat_messages(**example)
        ]