import os

from langchain.llms import OpenAI
from langchain.chat_models import ChatOpenAI
from langchain.chains import ConversationalRetrievalChain
from langchain.document_loaders import PyPDFLoader, Docx2txtLoader
from langchain.embeddings import OpenAIEmbeddings
from langchain.vectorstores import Chroma
from langchain.memory import ConversationSummaryMemory, ConversationBufferMemory
from langchain.prompts import (
    ChatPromptTemplate,
    MessagesPlaceholder,
    SystemMessagePromptTemplate,
    HumanMessagePromptTemplate,
)

import gradio as gr
import datetime
from huggingface_hub import Repository
from datasets import load_dataset
import random
import string
from pyairtable import Api

os.environ["OPENAI_API_KEY"]
os.environ["HUB_TOKEN"]
os.environ["AIR_TOKEN"]