Update app.py

Try to make tool for wikipedia search

app.py

@@ -1,5 +1,22 @@
 import gradio as gr
 from huggingface_hub import InferenceClient
+from smolagents import CodeAgent, HfApiModel, tool
+
+@tool
+def search_wikipedia_pages(search_string: str) -> str:
+    """This tool helps to search for wikipedia pages related to a search string. 
+    The output are the first 10 pages related to the search string.
+    Args:
+        arg1: the search string
+    """
+    try:
+        page_titles = wikipedia.search(search_string, results=10)
+        return page_titles
+    except (
+        self.wiki_client.exceptions.PageError,
+        self.wiki_client.exceptions.DisambiguationError,
+    ):
+        print ("An error occured")
 
 """
 For more information on `huggingface_hub` Inference API support, please check the docs: https://huggingface.co/docs/huggingface_hub/v0.22.2/en/guides/inference