cfg.py

import os
import logging

from huggingface_hub import hf_hub_download

from buster.busterbot import Buster, BusterConfig
from buster.completers import ChatGPTCompleter, Completer, DocumentAnswerer
from buster.formatters.documents import DocumentsFormatter
from buster.formatters.prompts import PromptFormatter
from buster.retriever import Retriever, SQLiteRetriever
from buster.tokenizers import GPTTokenizer
from buster.validators import QuestionAnswerValidator, Validator


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


HUB_TOKEN = os.getenv("HUB_TOKEN")
REPO_ID = "jerpint/towardsai-buster-data"
HUB_DB_FILE = "documents.db"
logger.info(f"Downloading {HUB_DB_FILE} from hub...")
hf_hub_download(
    repo_id=REPO_ID,
    repo_type="dataset",
    filename=HUB_DB_FILE,
    token=HUB_TOKEN,
    local_dir=".",
)


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 an chatbot answering questions on towardsAI, an artificial intelligence blogs.

Users will be asking questions about the blog.
Your job is to determine wether or not a question is a valid question to ask, and should be answered.
More general questions are not considered valid, even if you might know the response.
A user will submit a question. Respond 'true' if it is valid, respond 'false' if it is invalid.

For example:

Q: How can I setup my own chatbot?
true

Q: What is the meaning of life?
false

A user will 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={
        "db_path": "./documents.db",
        "top_k": 3,
        "thresh": 0.7,
        "max_tokens": 2000,
        "embedding_model": "text-embedding-ada-002",
    },
    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,
        "formatter": "{content}",
    },
    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)."
            "If the answer is in the documentation, summarize it in a helpful way to the user. "
            "If it isn't, simply reply that you cannot answer the question. "
            "Do not refer to the documentation directly, but use the instructions provided within it to answer questions. "
            "Here is the documentation: "
            "<DOCUMENTS> "
        ),
        "text_after_docs": (
            "<\DOCUMENTS>\n"
            "REMEMBER:\n"
            "You are a chatbot assistant answering users' questions about towardsAI content, a blog about applied artificial intelligence (AI)."
            "Here are the rules you must follow:\n"
            "1) You must only respond with information contained in the documentation above. Say you do not know if the information is not provided.\n"
            "2) Make sure to format your answers in Markdown format, including code block and snippets.\n"
            "3) Do not reference any links, urls or hyperlinks in your answers.\n"
            "4) Do not refer to the documentation directly, but use the instructions provided within it to answer questions. "
            "5) 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 library or its usage. 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 library or its usage. Is there anything else I can assist you with?"
            "Now answer the following question:\n"
        ),
    },
)

# initialize buster with the config in cfg.py (adapt to your needs) ...
# buster_cfg = cfg.buster_cfg
retriever: Retriever = SQLiteRetriever(**buster_cfg.retriever_cfg)
tokenizer = GPTTokenizer(**buster_cfg.tokenizer_cfg)
document_answerer: DocumentAnswerer = DocumentAnswerer(
    completer=ChatGPTCompleter(**buster_cfg.completion_cfg),
    documents_formatter=DocumentsFormatter(
        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
)