| /** | |
| * A type that represents a deeply readonly object. This is similar to | |
| * TypeScript's `Readonly` type, but it recursively applies the `readonly` | |
| * modifier to all properties of an object and all elements of arrays. | |
| */ | |
| export type DeepReadonly<T> = T extends (infer R)[] | |
| ? ReadonlyArray<DeepReadonly<R>> | |
| : T extends object | |
| ? { | |
| readonly [K in keyof T]: DeepReadonly<T[K]> | |
| } | |
| : T | |