export declare class EventListener {
    #private;
    constructor(callback: () => any);
    /** Disposes of this event listener */
    close(): void;
}
export declare type EventHandler<T> = (value: T) => any;
export declare class Event<T> {
    #private;
    constructor();
    /** Subscribes to events */
    on(handler: EventHandler<T>): EventListener;
    /** Subscribes once to an event */
    once(handler: EventHandler<T>): EventListener;
    /** Sends a value to subscribers */
    send(value: T): any;
    /** Returns the subscriber count for this event */
    count(): number;
    /** Disposes of this event */
    dispose(): void;
}
export declare class Events {
    #private;
    constructor();
    /** Subscribes to an event */
    on<T = unknown>(event: string, handler: EventHandler<T>): EventListener;
    /** Subscribes once to an event */
    once<T = unknown>(event: string, handler: EventHandler<T>): EventListener;
    /** Sends a value to subscribers of this event */
    send<T = unknown>(event: string, value: T): void;
    /** Returns the subscriber count for this event */
    count(event: string): number;
    /** Closes this event */
    close(): void;
}