error

app.py

@@ -9,7 +9,7 @@ from Gradio_UI import GradioUI
 
 # Below is an example of a tool that does nothing. Amaze us with your creativity !
 @tool
-def my_random_selector(city1:int, city2:int)-> str: #it's import to specify the return type
+def my_city_selector(city1:int, city2:int)-> str: #it's import to specify the return type
     #Keep this format for the description / args / args description but feel free to modify the tool
     """A tool that selects the city with higher number of museum
     Args:
@@ -58,7 +58,7 @@ with open("prompts.yaml", 'r') as stream:
     
 agent = CodeAgent(
     model=model,
-    tools=[final_answer, DuckDuckGoSearchTool, get_current_time_in_timezone, image_generation_tool], ## add your tools here (don't remove final answer)
+    tools=[final_answer, DuckDuckGoSearchTool, get_current_time_in_timezone, my_city_selector], ## add your tools here (don't remove final answer)
     max_steps=6,
     verbosity_level=1,
     grammar=None,