export type LoaderId = unknown;
export declare const DEFAULT_LOADER: LoaderId;
export declare function uniq(array: LoaderId[]): unknown[];
export declare function contains(array: Array<LoaderId>): (predicate?: LoaderId | VoidFunction) => boolean;
export declare const hasItems: (array: LoaderId[]) => boolean;
export declare function push(array: LoaderId[]): (item?: LoaderId) => unknown[];
export declare function pop(array: LoaderId[]): (item?: LoaderId) => unknown[];