import { PipeTransform } from '@angular/core';
import { Observable } from 'rxjs';
import { UtilityService } from '../services';
export declare class SdTimeDifferentPipe implements PipeTransform {
    private utilityService;
    private maxSecond;
    private maxMinute;
    private maxHour;
    private maxDay;
    private maxMonth;
    constructor(utilityService: UtilityService);
    transform(value: any, format: string, different: 'second' | 'minute' | 'hour' | 'day' | 'month'): Observable<string>;
}