import { PipeTransform } from '@angular/core';
import { LocaleService } from '../services/locale.service';
import { RelativeTimeOptions, Unit } from '../models/types';
export declare class L10nTimeAgoPipe implements PipeTransform {
    protected locale: LocaleService;
    constructor(locale: LocaleService);
    transform(value: any, defaultLocale: string, unit: Unit, format?: RelativeTimeOptions): string | null;
}