Update app.py

app.py

@@ -6,6 +6,7 @@ import json
 import requests
 import base64
 import random
+import time 
 
 STYLE_PRESETS = [None, "3d-model", "analog-film", "anime", "cinematic", "comic-book", "digital-art", "enhance", "fantasy-art", "isometric", "line-art", "low-poly",
                  "neon-punk", "origami", "photographic", "pixel-art", "texture", "craft-clay"]