# Special features - [Python programming](https://docs.mavibot.ai/special-features/python-programming.md): The builder supports running Python source code, allowing you to create bots with any logic you need. This article explains how to connect source code to your bot. - [QR code and barcode: generation and recognition](https://docs.mavibot.ai/special-features/qr-code-and-barcode-generation-and-recognition.md) - [How to use Google Sheets for mailings](https://docs.mavibot.ai/special-features/how-to-use-google-sheets-for-mailings.md): Here you can find the detailed instructions of how to collect email addresses with the help of a chatbot on Mavibot.ai and send a commercial offer with the script from Google Sheets. - [Sending requests to messengers and email](https://docs.mavibot.ai/special-features/sending-requests-to-messengers-and-email.md): Sending notifications/requests on WhatsApp, Telegram, Viber, email. - [Working with promo codes](https://docs.mavibot.ai/special-features/working-with-promo-codes.md): The bot allows not only to give promo codes to clients, but also check their validity and control their one-time use --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.mavibot.ai/special-features.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.