export type Basic = null | undefined | string | number | boolean | symbol | bigint;
export type DateInstanceType = Date;
export type MarkReadOnlyDeep<T> = T extends Basic | ((...args: any[]) => unknown) ? T : T extends ReadonlyMap<infer KeyType, infer ValueType> ? ReadOnlyMapDeep<KeyType, ValueType> : T extends ReadonlySet<infer ItemType> ? ReadOnlySetDeep<ItemType> : T extends {} ? ReadOnlyObjectDeep<T> : unknown;
/**
Same as `ReadonlyDeep`, but accepts only `ReadonlyMap`s as inputs. Internal helper for `ReadonlyDeep`.
*/
type ReadOnlyMapDeep<KeyType, ValueType> = ReadonlyMap<MarkReadOnlyDeep<KeyType>, MarkReadOnlyDeep<ValueType>>;
/**
Same as `ReadonlyDeep`, but accepts only `ReadonlySet`s as inputs. Internal helper for `ReadonlyDeep`.
*/
type ReadOnlySetDeep<ItemType> = ReadonlySet<MarkReadOnlyDeep<ItemType>>;
/**
Same as `ReadonlyDeep`, but accepts only `object`s as inputs. Internal helper for `ReadonlyDeep`.
*/
type ReadOnlyObjectDeep<ObjectType extends object> = {
    readonly [KeyType in keyof ObjectType]: MarkReadOnlyDeep<ObjectType[KeyType]>;
};
export {};