import 'reflect-metadata';
declare type IUnknown = any;
export declare type IEventType<T> = new () => T;
export declare type IEventData<T> = {
    [P in keyof T]: T[P];
};
export interface IEventHandler<T> {
    id: number;
    callback: IEventCallback<T>;
}
declare type IEventCallback<T> = (data: T) => void | Promise<void>;
export interface IEventId {
    readonly __id: number;
    readonly __type: IEventType<IUnknown>;
}
export declare class Events {
    private fLastId;
    private fHandlers;
    on<T>(type: IEventType<T>, callback: IEventCallback<T>): IEventId;
    waitFor<T>(type: IEventType<T>, timeout?: number | null): Promise<T>;
    off<T>(eventId: IEventId): number;
    trigger<T>(type: IEventType<T>, data?: IEventData<T>): Promise<number>;
    private objectToClass;
}
export {};