Only apply typings for state if a store has specific custom option set?

[richardvanbergen]

In the documentation for plugins it says you can apply custom options conditionally.

declare module "pinia" {
  export interface PiniaCustomStateProperties<S extends StateTree> {
    hello: 'world'
  }

  export interface DefineStoreOptionsBase<S extends StateTree, Store> {
    hello?: boolean
  }
}

pinia.use(({ options, store }) => {
  if (options.hello) {
    store.hello = "world"
  }
})

It also says you can augment state and actions on a per-store basis. However, the Typescript augmentations seem to affect the pinia instance globally and as far as I can tell there's no mechanism to say "if the store extends this custom option, apply these state properties".

This means that if you define a store and don't apply the option typescript will think the state exists, even when it doesn't.

const noDebounce = defineStore('noDebounce', {}, {})
const debounce = defineStore('debounce', {}, { hello: true })

noDebounce.hello // typescript does not error but will be undefined at runtime
debounce.hello // 'world'

Am I doing something wrong or is this something that's not possible/unsupported?