Update app.py

app.py

@@ -18,7 +18,7 @@ pipe.to("cuda")
 refiner = DiffusionPipeline.from_pretrained("stabilityai/stable-diffusion-xl-refiner-1.0", vae=vae, torch_dtype=torch.float16, use_safetensors=True, variant="fp16")
 refiner.to("cuda")
 
-pipe_fast = StableDiffusionXLPipeline.from_pretrained( "SG161222/RealVisXL_V4.0_Lightning", torch_dtype=torch.float16, vae=vae)
+pipe_fast = DiffusionPipeline.from_pretrained( "SG161222/RealVisXL_V4.0_Lightning", torch_dtype=torch.float16, vae=vae, use_safetensors=True, variant="fp16")
 pipe_fast.load_lora_weights("KingNish/Better-Image-XL-Lora", weight_name="example-03.safetensors", adapter_name="lora")
 pipe_fast.set_adapters("lora")
 pipe_fast.to("cuda")