import { OnInit } from '@angular/core';
import { MatIconRegistry } from '@angular/material/icon';
import { DomSanitizer } from '@angular/platform-browser';
import { Subject } from 'rxjs';
export declare abstract class SidebarCollapseToken {
    abstract withDefaultIcon: boolean;
    protected _isCollapsed: boolean;
    protected constructor();
    abstract collapseChange: Subject<boolean>;
    abstract collapse(): void;
}
export declare class SidebarCollapseComponent extends SidebarCollapseToken implements OnInit {
    private _matIconRegistry;
    private _domSanitizer;
    collapseChange: Subject<boolean>;
    protected _isCollapsed: boolean;
    withDefaultIcon: boolean;
    constructor(_matIconRegistry: MatIconRegistry, _domSanitizer: DomSanitizer);
    ngOnInit(): void;
    collapse(): void;
    get isCollapsed(): boolean;
    set isCollapsed(value: boolean);
}