Add image generation tool

app.py

@@ -70,7 +70,7 @@ with open("prompts.yaml", 'r') as stream:
     
 agent = CodeAgent(
     model=model,
-    tools=[get_current_time_in_timezone, get_person_bio, search_tool, final_answer], ## add your tools here (don't remove final answer)
+    tools=[get_current_time_in_timezone, get_person_bio, search_tool, image_generation_tool, final_answer], ## add your tools here (don't remove final answer)
     max_steps=6,
     verbosity_level=1,
     grammar=None,