Fix deprecation warning

backend/model_handler.py

@@ -33,7 +33,7 @@ class ModelHandler:
 
             self.model_int = AutoModel.from_pretrained(
                 internvl_model_path,
-                torch_dtype=torch.bfloat16,
+                dtype=torch.bfloat16,
                 low_cpu_mem_usage=True,
                 trust_remote_code=True
             ).eval()