How to define a type to get an array of exactly 10 items in Typescript

Question

I am defining a array in a slice state with Redux Toolkit below:

export const initialState = {
  dice: [] as DieDTO[],
  loading: false,
  error: null,
}

I actually want to restrict this DieDTO[] array to be of ten die exactly, no more, no less:

  dice: [] as DieDTO[
Die, Die, Die, Die, Die, Die, Die, Die, Die, Die
],

It will force me to feed the array at initialize, but I'll fix that later.

The problem with the last answer is, that it's pretty difficult to read.

How can I achieve that more elegantly?