export type ListenerOptionsType = {
    [key: string]: any;
    type: EventType;
    subtype: string;
    whoAmI?: string;
    addonInput?: string;
    value?: number;
};
export type ListenerType = (options: ListenerOptionsType) => void;
export type EventType = `on${string}=>${string}Change` | `on${string}Change`;
declare class EventDispatcher {
    _listeners: ({
        type: EventType;
        subtype: string;
        listener: ListenerType;
        options: {
            once: boolean;
        };
    })[];
    constructor();
    hasEventListener(type: EventType, subtype: string, listener: ListenerType): boolean;
    addEventListener(type: EventType, subtype: string, listener: ListenerType): this;
    removeEventListener(type: EventType, subtype: string, listener: ListenerType): this;
    removeEventListenerBasedOnType(type: EventType, listener: ListenerType): this;
    removeEventListeners(): this;
    dispatchEvent(evt: {
        type: EventType;
        [key: string]: any;
    }): this;
}
export default EventDispatcher;