Update app.py

app.py

@@ -1,11 +1,11 @@
 import os
-os.environ['COHERE_API_KEY'] = ""
+os.environ['COHERE_API_KEY'] = os.getenv('cohere_ai')
 # Create the Cohere chat model
 from langchain_cohere.chat_models import ChatCohere
 chat = ChatCohere(model="command-r-plus", temperature=0.3)
 from langchain_community.tools.tavily_search import TavilySearchResults
 
-os.environ['TAVILY_API_KEY'] = ""
+os.environ['TAVILY_API_KEY'] = os.getenv('tavily_ai')
 
 internet_search = TavilySearchResults()
 internet_search.name = "internet_search"