import { PipeTransform } from '@angular/core';
import * as i0 from "@angular/core";
/**
 * Pipe for the sorting function.
 */
export declare class SortByKeysPipe implements PipeTransform {
    /**
     * Order elements by sort key(s)
     * @param value - array of values
     * @param keys - string, sort key
     */
    transform(value: any, ...keys: string[]): any[];
    static ɵfac: i0.ɵɵFactoryDeclaration<SortByKeysPipe, never>;
    static ɵpipe: i0.ɵɵPipeDeclaration<SortByKeysPipe, "sortByKeys", false>;
}