Update utils.py

utils.py

@@ -38,7 +38,6 @@ from langchain_community.llms import HuggingFaceHub
 from langchain_community.llms import HuggingFaceTextGenInference
 from langchain_community.embeddings import HuggingFaceInstructEmbeddings, HuggingFaceEmbeddings, HuggingFaceBgeEmbeddings, HuggingFaceInferenceAPIEmbeddings
 from langchain_community.tools import DuckDuckGoSearchRun
-from langchain.retrievers.tavily_search_api import TavilySearchAPIRetriever
 from typing import Dict, TypedDict
 from langchain_core.messages import BaseMessage
 from langchain.prompts import PromptTemplate