Update app.py

app.py

@@ -7,13 +7,13 @@ packages = ['langchain', 'langchain-community', 'langchainhub','langchain-chroma
 for package in packages:
     subprocess.check_call(['pip', 'install', package])
 
-
+#import dependacies 
 from langchain.memory import ConversationBufferMemory
 from langchain_community.chat_message_histories import StreamlitChatMessageHistory
 from langchain_groq import ChatGroq
 from langchain.chains import LLMChain
 
-groq_api_key='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'
+groq_api_key=''
 
 llm = None