Update app.py

app.py

@@ -73,7 +73,7 @@ with gr.Blocks() as demo:
     
     # Event handlers 
     generate_button.click(predict, [image, model_choice, max_tokens, temperature], caption) 
-    sample_images_gallery.click(predict, [sample_images_gallery, model_choice, max_tokens, temperature], caption)  
+    sample_images_gallery.change(predict, [sample_images_gallery, model_choice, max_tokens, temperature], caption)  
     
 
 demo.launch()