import { PipeTransform } from '@angular/core';
import { TranslateService } from '@ngx-translate/core';
/**
 * PastPeriodColonPipe
 *
 * Transform the string containing current or lastXMonths into readable format (see examples)
 *
 * Examples:
 * 1) "current" | pastPeriodColon: "MM/YYYY": "2019-12-24"  => current: 12/2019
 * 2) "last6Months" | pastPeriodColon: "MM/YYYY": "2019-12-24" => last 6 months: 06/2019
 * 3) "lastYear" | pastPeriodColon: "MM/YYYY": "2019-12-24" => last 12 months: 12/2018
 * 4) "lastYear" | pastPeriodColon: "YYYY-MM-DD": "2019-12-24" => last 12 months: 2018-12-24
 *
 */
export declare class PastPeriodColonPipe implements PipeTransform {
    private translate;
    constructor(translate: TranslateService);
    transform(value: string, format?: string, current?: string): string;
}