> For the complete documentation index, see [llms.txt](https://docs.autonomous.finance/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.autonomous.finance/products/ecosystem-tooling/ao-teal.md).

# AO Teal

In this video, we introduce Teal, a typed version of Lua similar to TypeScript for JavaScript, offering type annotations for secure coding. We cover the basics of typed Lua and show you how to maximize its features. Additionally, we'll discuss a biginteger implementation by the Autonomous Finance Team for precise and secure handling of large numbers in critical applications.

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