Update app.py

app.py

@@ -26,7 +26,7 @@ def gen_image(desc: str, style: str):
 
     resp_data = requests.post(url, json=body, headers=headers)
     if resp_data['status'] != 200:
-        return []
+        return
     # img_np = np.array(resp_data['output_image_list'][0])
     # image = Image.fromarray(np.uint8(img_np))
     img_rep = requests.get(resp_data['output_image_url'][0])