import { PipeTransform } from '@angular/core';
import { SortingService } from '../../services/sorting.service';
/**
 * @deprecated
 * Please make use of the sorting service and sort arrays in the class instead of in the template.
 */
export declare class SortByPipe implements PipeTransform {
    private _sortingService;
    constructor(_sortingService: SortingService);
    /**
     * uses sorting service to sort by key
     */
    transform(array: Array<any>, args: string): Array<any>;
}