Update app.py

app.py

@@ -14,7 +14,7 @@ def web_search_tool(query:str)-> str: #it's import to specify the return type
     # Keep this format for the description / args / args description but feel free to modify the tool
     """A tool that takes user's query and performs a web search on it. 
     Args:
-        search_text: A string representing a search query from user. 
+        query: A string representing a search query from user. 
     """
     try:
         # Create a search object