import { NgZone } from '@angular/core';
import { EventManager } from '@angular/platform-browser';
export declare abstract class EventPlugin {
    protected manager: EventManager;
    protected abstract readonly modifier: RegExp;
    abstract addEventListener(element: HTMLElement, eventName: string, handler: EventListener): () => void;
    abstract addGlobalEventListener(element: string, eventName: string, handler: EventListener): () => void;
    supports(eventName: string): boolean;
    protected getZone(): NgZone;
    protected teardown(listener: (() => void) | null): () => void;
}
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