fix indentation

app.py

@@ -10,7 +10,12 @@ def generate_video(first_frame_url, last_frame_url, prompt):
     model_id = "Wan-AI/Wan2.1-FLF2V-14B-720P-diffusers"
     image_encoder = CLIPVisionModel.from_pretrained(model_id, subfolder="image_encoder", torch_dtype=torch.float32)
     vae = AutoencoderKLWan.from_pretrained(model_id, subfolder="vae", torch_dtype=torch.float32)
-    pipe = WanImageToVideoPipeline.from_pretrained(low_cpu_mem_usage=True, model_id, vae=vae, image_encoder=image_encoder, torch_dtype=torch.bfloat16)
+    pipe = WanImageToVideoPipeline.from_pretrained(
+    "Wan-AI/Wan2.1-FLF2V-14B-720P-diffusers",
+    torch_dtype=torch.bfloat16,
+    low_cpu_mem_usage=True,
+    keep_in_fp32_modules=True
+)
     pipe.to("cuda")
 
     first_frame = load_image(first_frame_url)