import { PipeTransform } from '@angular/core';
import { SafeAny } from '@ngx-simple/core/types';
export declare type Matcher<T> = (item: T, ...args: SafeAny[]) => boolean;
/**
 * 数组过滤，参考 `Array.filter` 用法
 *
 * @example
 * {
 *   readonly items = [1, 3, 5, 10, 15, 25]
 *   readonly matcher = item => item % 5 === 0 && item < 20;
 * }
 *
 * <p *ngFor="let item of items | filter: matcher">{{item}}</p>
 */
export declare class SimFilterPipe<T> implements PipeTransform {
    transform(items: ReadonlyArray<T>, matcher: Matcher<T>, ...args: SafeAny[]): T[];
}