code: import os
  import langchain
  import streamlit as st
  from dotenv import load_dotenv
  from langchain.chat_models import ChatOpenAI
  from langchain.cache import InMemoryCache
  from langchain.prompts import SystemMessagePromptTemplate, HumanMessagePromptTemplate, AIMessagePromptTemplate, ChatPromptTemplate, PromptTemplate
  
  
  # Config
  load_dotenv(".env")
  api_key = os.environ.get("key")
  
  # Cache Config
  langchain.llm_cache = InMemoryCache()
  chat = ChatOpenAI(api_key=api_key, model='gpt-3.5-turbo', max_tokens=500)
  
  st.header("🧇🥞🍳🥛 BrunchBuddy")
  
  st.sidebar.header("Parameters")
  slider_value = st.sidebar.slider("Time",  0, 120, 30)
  selectbox_value = st.sidebar.selectbox("Type", ("Vegetarian", "Non-Vegetarian"))
  
  system_message = "You are an AI recipe assistant that specialize in {brunch} dishes that can be prepared in {time}"
  system_message_prompt = SystemMessagePromptTemplate.from_template(system_message)
  human_template = "{recipe_request}"
  human_message_prompt = HumanMessagePromptTemplate.from_template(human_template)
  chat_prompt = ChatPromptTemplate.from_messages([system_message_prompt, human_message_prompt])
  
  prompt_input = st.text_input("What would you like to have for brunch:")
  if prompt_input:
      prompt = chat_prompt.format_prompt(time=str(slider_value) + " min", recipe_request=str(prompt_input), brunch=selectbox_value).to_messages()
      st.write(chat(prompt).content)
apis: langchain.prompts.SystemMessagePromptTemplate.from_template langchain.chat_models.ChatOpenAI langchain.cache.InMemoryCache langchain.prompts.ChatPromptTemplate.from_messages langchain.prompts.HumanMessagePromptTemplate.from_template
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