import { Nullable } from 'primeng/ts-helpers'; import * as i0 from "@angular/core"; export declare class ContextMenuService { private activeItemKeyChange; activeItemKeyChange$: import("rxjs").Observable; activeItemKey: Nullable; changeKey(key: string): void; reset(): void; static ɵfac: i0.ɵɵFactoryDeclaration; static ɵprov: i0.ɵɵInjectableDeclaration; }