import { PipeTransform } from '@angular/core';
import { LocalePipeBase } from '../../localization/pipes/locale-pipe-base';
import * as i0 from "@angular/core";
export declare class RelativeTimePipe extends LocalePipeBase implements PipeTransform {
    transform(input: Date, invalidDateDisplay?: string): string;
    static ɵfac: i0.ɵɵFactoryDeclaration<RelativeTimePipe, never>;
    static ɵpipe: i0.ɵɵPipeDeclaration<RelativeTimePipe, "relativeTime", true>;
}