How to define TailwindCSS plugins?

In my current TailwindCSS project using JS I define plugins in a `tailwind.config.js` file such as:

```
plugins: [
    require("@tailwindcss/aspect-ratio"),
    require("@tailwindcss/typography")
]
```

This file is also where I extended the theme.

With Vapor and SwiftyTailwind, how can I achieve the same thing?