Update model.py

model.py

@@ -192,18 +192,18 @@ def build_graph(provider: str = "groq"):
     #     return {"messages": [sys_msg] + state["messages"] + [example_msg]}
 
     def retriever(state: MessagesState):
-    """Retriever node"""
-    query = state["messages"][0].content
-    similar_question = vector_store.similarity_search(query)
-
-    if not similar_question:
-        print("No similar documents found.")
-        return {"messages": [sys_msg] + state["messages"]}
-
-    example_msg = HumanMessage(
-        content=f"Here I provide a similar question and answer for reference: \n\n{similar_question[0].page_content}",
-    )
-    return {"messages": [sys_msg] + state["messages"] + [example_msg]}
+        """Retriever node"""
+        query = state["messages"][0].content
+        similar_question = vector_store.similarity_search(query)
+    
+        if not similar_question:
+            print("No similar documents found.")
+            return {"messages": [sys_msg] + state["messages"]}
+    
+        example_msg = HumanMessage(
+            content=f"Here I provide a similar question and answer for reference: \n\n{similar_question[0].page_content}",
+        )
+        return {"messages": [sys_msg] + state["messages"] + [example_msg]}
 
 
     builder = StateGraph(MessagesState)