aselect_examples() — langchain Function Reference

Architecture documentation for the aselect_examples() function in semantic_similarity.py from the langchain codebase.

Function python PromptManagement ExampleSelection calls 3 called by 1

Entity Profile

PromptManagement→ ExampleSelection→ aselect_examples() — langchain Function Reference

Dependency Diagram

graph TD
  6e2cf8fc_7d12_860d_060c_d74b9a96affd["aselect_examples()"]
  aa3e3447_c66f_695d_1f2e_1163e1aabd18["MaxMarginalRelevanceExampleSelector"]
  6e2cf8fc_7d12_860d_060c_d74b9a96affd -->|defined in| aa3e3447_c66f_695d_1f2e_1163e1aabd18
  ff07acd4_d1e7_c5a7_504d_ed6733d8ee0d["aselect_examples()"]
  ff07acd4_d1e7_c5a7_504d_ed6733d8ee0d -->|calls| 6e2cf8fc_7d12_860d_060c_d74b9a96affd
  06f73539_fe12_1c9c_b0b0_60530c6bf341["_example_to_text()"]
  6e2cf8fc_7d12_860d_060c_d74b9a96affd -->|calls| 06f73539_fe12_1c9c_b0b0_60530c6bf341
  27e09fc4_bf9b_d1a5_5626_387af543d2c7["_documents_to_examples()"]
  6e2cf8fc_7d12_860d_060c_d74b9a96affd -->|calls| 27e09fc4_bf9b_d1a5_5626_387af543d2c7
  ff07acd4_d1e7_c5a7_504d_ed6733d8ee0d["aselect_examples()"]
  6e2cf8fc_7d12_860d_060c_d74b9a96affd -->|calls| ff07acd4_d1e7_c5a7_504d_ed6733d8ee0d
  style 6e2cf8fc_7d12_860d_060c_d74b9a96affd fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/langchain_core/example_selectors/semantic_similarity.py lines 251–265

    async def aselect_examples(self, input_variables: dict[str, str]) -> list[dict]:
        """Asynchronously select examples based on Max Marginal Relevance.

        Args:
            input_variables: The input variables to use for search.

        Returns:
            The selected examples.
        """
        example_docs = await self.vectorstore.amax_marginal_relevance_search(
            self._example_to_text(input_variables, self.input_keys),
            k=self.k,
            fetch_k=self.fetch_k,
        )
        return self._documents_to_examples(example_docs)