code: def generate_response(input_text):
      llama2_13b_chat = "meta/llama-2-13b-chat:f4e2de70d66816a838a89eeeb621910adffb0dd0baba3976c96980970978018d"
  
      llm = Replicate(
          model=llama2_13b_chat,
          model_kwargs={
              "temperature": 0.01,
              "top_p": 1,
              "max_new_tokens": 500,
          },
      )
      st.info(llm(input_text))
  
imports: import streamlit
  from langchain.llms import Replicate
  import os
label_desc: Use image node_id 1 for calling a global function with example usage: generate_response(input_text) without return types