Update app.py

app.py

@@ -49,7 +49,7 @@ def generate(
     height: int = 1024,
     guidance_scale_base: float = 5.0,
     num_inference_steps_base: int = 25,
-    strength_img2img: float = 0.7
+    strength_img2img: float = 0.7,
     use_vae: bool = False,
     use_lora: bool = False,
     model = 'stabilityai/stable-diffusion-xl-base-1.0',