add torchvision to requirement

app.py

@@ -11,7 +11,7 @@ from src.attention_processor import FluxBlendedAttnProcessor2_0
 from src.utils_sample import set_seed, resize_and_add_margin
 import os
 
-
+pipe = None
 
 @spaces.GPU
 def process_image_and_text(image, scale, seed, text, pipe):
@@ -140,7 +140,6 @@ def create_app():
     dtype = torch.bfloat16
     token = os.environ.get("HF_TOKEN")
 
-    pipe = None
     pipe = FluxPipeline.from_pretrained(
         "black-forest-labs/FLUX.1-dev", 
         torch_dtype=dtype,