Update app.py

app.py

@@ -68,7 +68,7 @@ class Chat:
         self.version = "qwen"
         model_name = "cambrian_qwen"
         model_path = snapshot_download("Vision-CAIR/LongVU_Qwen2_7B", repo_type="model")
-+       device = "cuda"
+        device = "cuda"
 
         self.tokenizer, self.model, self.processor, _ = load_pretrained_model(model_path,  None, model_name, device=device)
         self.model.eval()