import { ElementRef, Renderer2 } from '@angular/core';
import { Observable } from 'rxjs';
import { EventUnlistener } from '../event-manager/event-manager-plugin';
import { ArrayBehaviorState } from '../rx/behavior-state';
export declare class ShortcutManager<T = any> {
    protected renderer: Renderer2;
    protected readonly unlistener: ArrayBehaviorState<[string, EventUnlistener]>;
    get keystrokes(): string[];
    nativeElement: T;
    constructor(renderer: Renderer2, elementRef?: ElementRef<T> | T);
    register(keystroke: string, listener: EventListener): EventUnlistener;
    unregister(keystroke: string): void;
    clear(): void;
    asObservable(): Observable<string[]>;
}