update wikipedia tool

agent.py

@@ -12,7 +12,8 @@ from langchain_community.document_loaders import ImageCaptionLoader
 import requests
 import pandas as pd
 from pypdf import PdfReader
-from langchain.tools import WikipediaTool
+from langchain_community.tools import WikipediaQueryRun
+from langchain_community.utilities import WikipediaAPIWrapper
 from youtube_transcript_api import YouTubeTranscriptApi
 
 @tool
@@ -43,7 +44,9 @@ def wiki_search(query: str) -> str:
     Args:
         query: what you want to wiki
     """
-    return WikipediaTool().query(query)
+    api_wrapper = WikipediaAPIWrapper(top_k_results=1, doc_content_chars_max=100)
+    wikipediatool = WikipediaQueryRun(api_wrapper=api_wrapper)
+    return wikipediatool.run({"query": query})
 
 
 @tool