Update agent.py

agent.py

@@ -12,6 +12,10 @@ from llama_index.core.agent.workflow import AgentWorkflow
 
 llm = HuggingFaceInferenceAPI(model_name="Qwen/Qwen2.5-VL-32B-Instruct")
 
+class ToolMetadata(Metadata):
+    name: str
+    description: str
+    
 @tool
 def web_search(query: str) -> list:
     """Search Tavily for a query and return a maximum 3 results as LlamaIndex Documents.