import { PipeTransform } from '@angular/core';
/**
 * 判断是否为空
 * 为空时返回true
 * 非空时返回false
 *
 * @export
 * @class IsNullOrEmptyPipe
 * @implements {PipeTransform}
 */
export declare class IsNullOrEmptyPipe implements PipeTransform {
    transform(value: any, args?: any): any;
}