Update vllm_engine.py

Author: xusenlinzy

api/core/vllm_engine.py

@@ -79,7 +79,7 @@ def apply_chat_template(
             return self.tokenizer.build_chat_input(
                 query, history=messages[:-1], role=role
             )["input_ids"][0].tolist()
-        elif self.model_name.startswith("qwen") and ("qwen1.5" not in self.model_name) ("qwen2" not in self.model_name):
+        elif self.model_name.startswith("qwen") and ("qwen1.5" not in self.model_name) and ("qwen2" not in self.model_name):
             return build_qwen_chat_input(
                 self.tokenizer,
                 messages,