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# Source code for langchain_community.tools.wikipedia.tool

    """Tool for the Wikipedia API."""

    from typing import Optional

    from langchain_core.callbacks import CallbackManagerForToolRun
    from langchain_core.tools import BaseTool

    from langchain_community.utilities.wikipedia import WikipediaAPIWrapper

    class WikipediaQueryRun(BaseTool):
        """Tool that searches the Wikipedia API."""

        name: str = "wikipedia"
        description: str = (
            "A wrapper around Wikipedia. "
            "Useful for when you need to answer general questions about "
            "people, places, companies, facts, historical events, or other subjects. "
            "Input should be a search query."
        )
        api_wrapper: WikipediaAPIWrapper

        def _run(
            self,
            query: str,
            run_manager: Optional[CallbackManagerForToolRun] = None,
        ) -> str:
            """Use the Wikipedia tool."""
            return self.api_wrapper.run(query)