Update app.py

app.py

@@ -21,7 +21,7 @@ def my_custom_tool(arg1:str, img: bool)-> str|Any: #it's import to specify the r
     """
     try:
         if img:
-            return image_generation_tool
+            return image_generation_tool(arg1)
         else:
             search_obj = DuckDuckGoSearchTool()
             answer = search_obj(arg1)