import os from langchain_community.tools.tavily_search import TavilySearchResults from dotenv import load_dotenv load_dotenv() OPENAI_API_KEY = os.getenv('OPENAI_API_KEY') TAVILY_API_KEY = os.getenv('TAVILY_API_KEY') #load websearch toolfrom langchain_community.tools.tavily_search import TavilySearchResults tv_search = TavilySearchResults(max_results=3, search_depth='advanced', max_tokens=10000)