Update app.py

app.py

@@ -23,6 +23,12 @@ image_generation_tool = load_tool("agents-course/text-to-image", trust_remote_co
 
 @tool
 def generate_image(prompt: str) -> str:
+    """
+    Generates an image from a text prompt.
+
+    Args:
+        prompt: A detailed description of the image to generate.
+    """
     try:
         result = image_generation_tool(prompt)
         image = result["image"]