_run() — langchain Function Reference

Architecture documentation for the _run() function in tools.py from the langchain codebase.

Function python LangChainCore MessageInterface

Entity Profile

LangChainCore→ MessageInterface→ _run() — langchain Function Reference

Dependency Diagram

graph TD
  6e6f8896_4416_f1d0_5b8e_27fb87d90d9e["_run()"]
  95f18c22_c86d_94b5_f7fd_42445bd9ee03["PerplexitySearchResults"]
  6e6f8896_4416_f1d0_5b8e_27fb87d90d9e -->|defined in| 95f18c22_c86d_94b5_f7fd_42445bd9ee03
  style 6e6f8896_4416_f1d0_5b8e_27fb87d90d9e fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/partners/perplexity/langchain_perplexity/tools.py lines 30–66

    def _run(
        self,
        query: str | list[str],
        max_results: int = 10,
        country: str | None = None,
        search_domain_filter: list[str] | None = None,
        search_recency_filter: Literal["day", "week", "month", "year"] | None = None,
        search_after_date: str | None = None,
        search_before_date: str | None = None,
        run_manager: CallbackManagerForToolRun | None = None,
    ) -> list[dict] | str:
        """Use the tool."""
        try:
            params = {
                "query": query,
                "max_results": max_results,
                "country": country,
                "search_domain_filter": search_domain_filter,
                "search_recency_filter": search_recency_filter,
                "search_after_date": search_after_date,
                "search_before_date": search_before_date,
            }
            params = {k: v for k, v in params.items() if v is not None}
            response = self.client.search.create(**params)
            return [
                {
                    "title": result.title,
                    "url": result.url,
                    "snippet": result.snippet,
                    "date": result.date,
                    "last_updated": result.last_updated,
                }
                for result in response.results
            ]
        except Exception as e:
            msg = f"Perplexity search failed: {type(e).__name__}"
            return msg