export declare class EventHookHandler {
    subIds: number;
    subscriptions: {
        [eventName: string]: {
            [token: number]: (data: any) => void;
        };
    };
    constructor();
    subscribe(eventName: string, fn: (data: any) => void): () => void;
    unsubscribe(eventName: string, token: number): void;
    trigger(eventName: string, data: any): any;
    publish(eventName: any, data: any): boolean;
}