import { EventEmitter } from '@angular/core';
import * as i0 from "@angular/core";
export declare class Md2Collapse {
    _collapse: boolean;
    _collapsing: boolean;
    collapsed: EventEmitter<void>;
    expanded: EventEmitter<void>;
    get collapse(): boolean;
    set collapse(value: boolean);
    /**
     * toggle collapse
     */
    toggle(): void;
    /**
    * show collapse
    */
    show(): void;
    /**
     * hide collapse
     */
    hide(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<Md2Collapse, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<Md2Collapse, "[collapse]", ["md2Collapse"], { "collapse": { "alias": "collapse"; "required": false; }; }, { "collapsed": "collapsed"; "expanded": "expanded"; }, never, never, false, never>;
}