Update app.py

app.py

@@ -60,6 +60,13 @@ def display_chat_history(chain):
                 message(st.session_state["past"][i], is_user=True, key=str(i) + '_user', avatar_style="thumbs")
                 message(st.session_state["generated"][i], key=str(i), avatar_style="fun-emoji")
 
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+os.environ['HuggingFaceHub_API_Token']= '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'
+tokenizer = AutoTokenizer.from_pretrained("NousResearch/Nous-Hermes-llama-2-7b")
 def create_conversational_chain(vector_store):
     load_dotenv()
     # Create llm