import { BehaviorSubject } from 'rxjs';
import { Extension } from '../../../../core/extension/extension.model';
import { ExtensionService } from '../../../../core/extension/extension.service';
import { ContextService } from '../../../../core/extension/context.service';
import * as i0 from "@angular/core";
export declare class SidenavService {
    private extensionService;
    private contextService;
    extensionsSubject: BehaviorSubject<Extension[]>;
    private visible;
    private extensions;
    private SIDENAV_EXTENSION_TYPE;
    constructor(extensionService: ExtensionService, contextService: ContextService);
    registerContributions(): void;
    show(): void;
    hide(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<SidenavService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<SidenavService>;
}