wikipedia_searcher.py

from langchain_community.tools import WikipediaQueryRun
from langchain_community.utilities import WikipediaAPIWrapper

class WikipediaSearcher:
    def __init__(self):
        self.wikipedia = WikipediaQueryRun(api_wrapper=WikipediaAPIWrapper())

    def search(self, query: str) -> str:
        return self.wikipedia.run(query)