Update app.py

app.py

@@ -23,7 +23,7 @@ def load_models():
     
     pipe = Lumina2Pipeline.from_pretrained(
         "X-ART/LeX-Lumina", 
-        torch_dtype=torch_bfloat16
+        torch_dtype=torch.bfloat16
     )
     device = "cuda" if torch.cuda.is_available() else "cpu"
     # pipe.to("cuda")