import { QueryList } from '@angular/core';
/**
 * For type safety when using @ContentChildren and @ViewChildren
 *
 * NOTE: Be careful subscribing to 'changes'
 * @deprecated use viewChild(), viewChildren(), contentChild() and contentChildren() for strict type checking
 */
export declare const EMPTY_QUERY: QueryList<any>;
export declare const EMPTY_ARRAY: [];
export declare const EMPTY_FUNCTION: (...args: any[]) => void;
export declare const EMPTY_CLIENT_RECT: DOMRect;