import type { ESLMedia } from './esl-media';
export interface ESLMediaHookEventInit {
    initiator: 'initial' | 'user' | 'system';
    relatedMedia?: ESLMedia;
}
/**
 * Event class for {@link ESLMedia} hooks
 * (cancelable events dispatched during ESLMedia lifecycle)
 */
export declare class ESLMediaHookEvent extends Event implements ESLMediaHookEventInit {
    readonly target: ESLMedia;
    readonly initiator: 'initial' | 'user' | 'system';
    readonly relatedMedia?: ESLMedia;
    constructor(type: string, init: ESLMediaHookEventInit);
}