Update agent.py

agent.py

@@ -187,7 +187,7 @@ def build_graph(provider: str = "google"):
        # return {"messages": [sys_msg] + state["messages"] + [example_msg]}
 
     def retriever(state: MessagesState):
-    """Retriever node"""
+        """Retriever node"""
         current_question = state["messages"][-1].content
         similar_doc = vector_store.similarity_search(current_question, k=1)[0]
         page_content = similar_doc.page_content.strip()