added tools array in agent. had missed it earlier

app.py

@@ -68,7 +68,10 @@ with open("prompts.yaml", 'r') as stream:
     
 agent = CodeAgent(
     model=model,
-    tools=[final_answer], ## add your tools here (don't remove final answer)
+    tools=[final_answer, 
+        local_celeb_search, 
+        get_current_time_in_timezone, 
+        image_generation_tool], ## add your tools here (don't remove final answer)
     max_steps=6,
     verbosity_level=1,
     grammar=None,