Function defineLazyModule

defineLazyModule<T, M = T>(
    key: string,
    loader: () => Promise<T>,
    options?: LazyModuleOptions<T, M>,
): LazyModule<M>
Defines a module that is loaded on first use.
Type Parameters
- T
- M = T
Parameters
- key: string
  Unique key, for example 'studio:sortDialog'. Defining a key again replaces the module defined with it.
- loader: () => Promise<T>
  Imports the module, typically () => import('./SortDialog'). It must resolve to the module itself, with any export picked by options.select: after a failed fetch, the module is imported again directly from the URL the browser reported.
- Optionaloptions: LazyModuleOptions<T, M>
  Selection, prefetch, and retry options.
Returns LazyModule<M>
Remarks
Browsers remember a failed module fetch until the page reloads. When the browser's error names the module's URL, later attempts import that URL again under a new query string, so the module loads once the network is back. Where the error does not name it (Safari), a failed module loads again only after a reload.
Example
```
const SortDialog = defineLazyModule('studio:sortDialog', () => import('./SortDialog'));
const { default: Dialog } = await SortDialog.load();

const Chart = defineLazyModule('sdk:chart', () => import('./Chart'), { select: (m) => m.Chart });
```