Update app_4k.py

app_4k.py

@@ -146,7 +146,7 @@ default_negative_prompt = "Bright tones, overexposed, static, blurred details, s
 def get_duration(prompt, height, width, 
                    negative_prompt, duration_seconds,
                    guidance_scale, steps,
-                   seed, randomize_seed, 
+                   seed, randomize_seed, use_ultrawan_4k,
                    progress):
     if steps > 4 and duration_seconds > 2:
         return 90