add image generation tool

app.py

@@ -64,7 +64,14 @@ with open("prompts.yaml", 'r') as stream:
     
 agent = CodeAgent(
     model=model,
-    tools=[who_am_i, my_custom_tool, web_search, get_current_time_in_timezone, final_answer], ## add your tools here (don't remove final answer)
+    tools=[
+        who_am_i,
+        my_custom_tool,
+        web_search,
+        get_current_time_in_timezone,
+        final_answer,
+        image_generation_tool
+    ], ## add your tools here (don't remove final answer)
     max_steps=6,
     verbosity_level=1,
     grammar=None,