Update app.py

app.py

@@ -137,7 +137,7 @@ js_bridge = """
         return args;
     }
     """
-    visual_data.change(None, [visual_data], None, js=js_bridge)
+visual_data.change(None, [visual_data], None, js=js_bridge)
 
 if __name__ == "__main__":
 demo.launch(theme=gr.themes.Base(), css=css)