/**
 * Function, which orders array of items by criteria in some direction.
 * @param arr - list of items to be ordered.
 * @param by - criteria of ordering.
 * @param order - direction of ordering. Default: 'asc'.
 * @returns - array of data, ordered by criteria.
 */
export declare function orderBy<T>(arr: T[], by: (item: T) => string | number | null | undefined, order?: 'asc' | 'desc'): T[];
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