cfg.py

import logging
import os

from buster.busterbot import Buster, BusterConfig
from buster.completers import ChatGPTCompleter, Completer, DocumentAnswerer
from buster.formatters.documents import DocumentsFormatterJSON
from buster.formatters.prompts import PromptFormatter
from buster.retriever import DeepLakeRetriever, Retriever
from buster.tokenizers import GPTTokenizer
from buster.validators import QuestionAnswerValidator, Validator
from huggingface_hub import hf_hub_download

from utils import extract_zip

logger = logging.getLogger(__name__)
logging.basicConfig(level=logging.INFO)

# For authentication
USERNAME = os.getenv("BUSTER_USERNAME")
PASSWORD = os.getenv("BUSTER_PASSWORD")

HUB_TOKEN = os.getenv("HUB_TOKEN")
REPO_ID = os.getenv("HF_DATASET")

DEEPLAKE_DATASET = os.getenv("DEEPLAKE_DATASET", "wiki_tai_langchain")
ZIP_FILE = DEEPLAKE_DATASET + ".zip"

logger.info(f"Downloading {ZIP_FILE} from hub...")
hf_hub_download(
    repo_id=REPO_ID,
    repo_type="dataset",
    filename=ZIP_FILE,
    token=HUB_TOKEN,
    local_dir=".",
)

extract_zip(zip_file_path=ZIP_FILE, output_path=DEEPLAKE_DATASET)

example_questions = [
    "What is the LLama model?",
    "What is a LLM?",
    "What is an embedding?",
]


buster_cfg = BusterConfig(
    validator_cfg={
        "unknown_response_templates": [
            "I'm sorry, but I am an AI language model trained to assist with questions related to AI. I cannot answer that question as it is not relevant to the library or its usage. Is there anything else I can assist you with?",
        ],
        "unknown_threshold": 0.85,
        "embedding_model": "text-embedding-ada-002",
        "use_reranking": True,
        "invalid_question_response": "This question does not seem relevant to my current knowledge.",
        "check_question_prompt": """You are a chatbot, answering questions about large language models and artificial intelligence.
Users will ask all sorts of questions, and some might be tangentially related.
Users will learn to build LLM-powered apps, with LangChain & Deep Lake among other technologies.
As long as a question is somewhat related to the topic, respond 'true'. If a question is completely unrelated, respond 'false'.

For example:

Q: How can I setup my own chatbot?
true

Q: What is the meaning of life?
false

A user will now submit a question. Respond 'true' if it is valid, respond 'false' if it is invalid.""",
        "completion_kwargs": {
            "model": "gpt-3.5-turbo",
            "stream": False,
            "temperature": 0,
        },
    },
    retriever_cfg={
        "path": f"./{DEEPLAKE_DATASET}",
        "top_k": 3,
        "thresh": 0.7,
        "max_tokens": 2000,
        "embedding_model": "text-embedding-ada-002",
        "exec_option": "compute_engine",
        "use_tql": True,
    },
    documents_answerer_cfg={
        "no_documents_message": "No blog posts are available for this question.",
    },
    completion_cfg={
        "completion_kwargs": {
            "model": "gpt-3.5-turbo",
            "stream": True,
            "temperature": 0,
        },
    },
    tokenizer_cfg={
        "model_name": "gpt-3.5-turbo",
    },
    documents_formatter_cfg={
        "max_tokens": 3500,
        "columns": ["content", "source", "title"],
    },
    prompt_formatter_cfg={
        "max_tokens": 3500,
        "text_before_docs": (
            "You are a chatbot assistant answering users' questions about towardsAI content, a blog about applied artificial intelligence (AI)."
            "You are provided information found in the <DOCUMENTS> tag. "
            "Only respond with infomration inside the <DOCUMENTS> tag. DO NOT use additional information, even if you know the answer. "
            "If the answer is in the documentation, summarize it in a helpful way to the user. "
            "If the documentation does not discuss the topic related to the question, kindly respond that you cannot answer the question because it is not part of your knowledge. "
            "Here is the information you can use: "
        ),
        "text_after_docs": (
            "REMEMBER:\n"
            "You are a chatbot assistant answering users' questions about towardsAI content, a blog about applied artificial intelligence (AI)."
            "You are provided information found in the <DOCUMENTS> tag. "
            "Here are the rules you must follow:\n"
            "* Only respond with infomration inside the <DOCUMENTS> tag. DO NOT providew additional information, even if you know the answer. "
            "* If the answer is in the documentation, summarize it in a helpful way to the user. "
            "* If the documentation does not discuss the topic related to the question, kindly respond that you cannot answer the question because it is not part of your knowledge. "
            "* Only summarize the information in the <DOCUMENTS> tag, do not respond otherwise. "
            "* Do not refer to the documentation directly, but use the instructions provided within it to answer questions. "
            "* Do not reference any links, urls or hyperlinks in your answers.\n"
            "* Make sure to format your answers in Markdown format, including code block and snippets.\n"
            "* If you do not know the answer to a question, or if it is completely irrelevant to the library usage, simply reply with:\n"
            "'I'm sorry, but I am an AI language model trained to assist with questions related to AI. I cannot answer that question as it is not relevant to the topics I'm trained on. Is there anything else I can assist you with?'"
            "For example:\n"
            "What is the meaning of life for a qa bot?\n"
            "I'm sorry, but I am an AI language model trained to assist with questions related to AI. I cannot answer that question as it is not relevant to the topics I'm trained on. Is there anything else I can assist you with?"
            "Now answer the following question:\n"
        ),
    },
)


def setup_buster(buster_cfg):
    retriever: Retriever = DeepLakeRetriever(**buster_cfg.retriever_cfg)
    tokenizer = GPTTokenizer(**buster_cfg.tokenizer_cfg)
    document_answerer: DocumentAnswerer = DocumentAnswerer(
        completer=ChatGPTCompleter(**buster_cfg.completion_cfg),
        documents_formatter=DocumentsFormatterJSON(
            tokenizer=tokenizer, **buster_cfg.documents_formatter_cfg
        ),
        prompt_formatter=PromptFormatter(
            tokenizer=tokenizer, **buster_cfg.prompt_formatter_cfg
        ),
        **buster_cfg.documents_answerer_cfg,
    )
    validator: Validator = QuestionAnswerValidator(**buster_cfg.validator_cfg)
    buster: Buster = Buster(
        retriever=retriever, document_answerer=document_answerer, validator=validator
    )
    return buster