[v4] How to extend a custom @utility defined in a library?

[mek-earnin]

I use a design system with custom spacing tokens (there are also semantic tokens but in the example I only included primitive tokens).
In v3, I used something like slide-in-from-bottom-4px with tailwind-animate
In v4, I use tw-animate-css and noticed it doesn't work because it doesn't use --spacing-* but rather --translate-*.

 @utility slide-in-from-bottom-* {
  --tw-enter-translate-y: calc(--value(integer) * var(--spacing));
  --tw-enter-translate-y: calc(--value(--percentage-*, --percentage-translate-*) * 100%);
  --tw-enter-translate-y: calc(--value(ratio) * 100%);
  --tw-enter-translate-y: --value(--translate-*, [percentage], [length]);
} 

So I wanted to extend it by declaring another utility that uses my custom spacing tokens.

@utility slide-in-from-bottom-* {
  --tw-enter-translate-y: --value(--spacing-*);
}

However, there's no class generated.
https://play.tailwindcss.com/FXFXz47koM?layout=horizontal&file=css