/**
 * @license
 * Copyright Google Inc. All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
import { PipeTransform } from '@angular/core';
/**
 * WARNING: this pipe uses the Internationalization API.
 * Therefore it is only reliable in Chrome and Opera browsers. For other browsers please use an
 * polyfill, for example: [https://github.com/andyearnshaw/Intl.js/].
 *
 * Formats a number as local text. i.e. group sizing and separator and other locale-specific
 * configurations are based on the active locale.
 *
 * ### Usage
 *
 *     expression | number[:digitInfo]
 *
 * where `expression` is a number and `digitInfo` has the following format:
 *
 *     {minIntegerDigits}.{minFractionDigits}-{maxFractionDigits}
 *
 * - minIntegerDigits is the minimum number of integer digits to use. Defaults to 1.
 * - minFractionDigits is the minimum number of digits after fraction. Defaults to 0.
 * - maxFractionDigits is the maximum number of digits after fraction. Defaults to 3.
 *
 * For more information on the acceptable range for each of these numbers and other
 * details see your native internationalization library.
 *
 * ### Example
 *
 * {@example core/pipes/ts/number_pipe/number_pipe_example.ts region='NumberPipe'}
 *
 * @experimental
 */
export declare class DecimalPipe implements PipeTransform {
    transform(value: any, digits?: string): string;
}
/**
 * WARNING: this pipe uses the Internationalization API.
 * Therefore it is only reliable in Chrome and Opera browsers. For other browsers please use an
 * polyfill, for example: [https://github.com/andyearnshaw/Intl.js/].
 *
 * Formats a number as local percent.
 *
 * ### Usage
 *
 *     expression | percent[:digitInfo]
 *
 * For more information about `digitInfo` see {@link DecimalPipe}
 *
 * ### Example
 *
 * {@example core/pipes/ts/number_pipe/number_pipe_example.ts region='PercentPipe'}
 *
 * @experimental
 */
export declare class PercentPipe implements PipeTransform {
    transform(value: any, digits?: string): string;
}
/**
 * WARNING: this pipe uses the Internationalization API.
 * Therefore it is only reliable in Chrome and Opera browsers. For other browsers please use an
 * polyfill, for example: [https://github.com/andyearnshaw/Intl.js/].
 *
 *
 * Formats a number as local currency.
 *
 * ### Usage
 *
 *     expression | currency[:currencyCode[:symbolDisplay[:digitInfo]]]
 *
 * where `currencyCode` is the ISO 4217 currency code, such as "USD" for the US dollar and
 * "EUR" for the euro. `symbolDisplay` is a boolean indicating whether to use the currency
 * symbol (e.g. $) or the currency code (e.g. USD) in the output. The default for this value
 * is `false`.
 * For more information about `digitInfo` see {@link DecimalPipe}
 *
 * ### Example
 *
 * {@example core/pipes/ts/number_pipe/number_pipe_example.ts region='CurrencyPipe'}
 *
 * @experimental
 */
export declare class CurrencyPipe implements PipeTransform {
    transform(value: any, currencyCode?: string, symbolDisplay?: boolean, digits?: string): string;
}