Added youtube search tool

agent.py

@@ -5,6 +5,7 @@ import json
 import pandas as pd
 from smolagents import (
     CodeAgent, 
+    YouTubeSearchTool
     LiteLLMModel, 
     DuckDuckGoSearchTool, 
     FinalAnswerTool,
@@ -105,6 +106,7 @@ agent = CodeAgent(
         WikipediaSearchTool(),
         arxiv_search,
         FinalAnswerTool(),
+        YouTubeSearchTool(),
         extract_text_from_image
     ],
     planning_interval=3,