Update app.py

app.py

@@ -17,7 +17,7 @@ User: {question}
 Assistant:"""
 prompt = PromptTemplate(template=prompt_template, input_variables=["question"])
 chain = LLMChain(llm=llm, prompt=prompt)
-def chatbot(question):
+def chatbot(question,chat_history):
     response = chain.run(question)
     return response
 demo = gr.ChatInterface(