import { EventEmitter } from 'eventemitter3';
declare class Emitter extends EventEmitter {
    _barriers: Barriers;
    _lookups: Lookups;
    /**
     * Emit an event and an associated payload.
     *
     * Update the event collection counters and invoke the associated callbacks
     * if required.
     */
    emit(event: string, ...args: any[]): boolean;
    /**
     * Listen on a collection of events.
     *
     * Callbacks registered for a given collection will be invoked each time the
     * member events have been emitted at least once. Note that the order of the
     * member events is not significant.
     *
     * Callbacks are not invoked with arguments, however, data may be accessed from
     * the store as normal.
     *
     * @param context The context to invoke the listener with.
     */
    all(events: string[], callback: () => void, context?: any): this;
    /**
     * Remove a callback for a given collection of events.
     *
     * The order of the member events is not significant.
     */
    allOff(events: string[], callback: () => void): this;
    generateKey(events: string[]): string;
}
export interface Events {
    [key: string]: number;
}
export interface Barrier {
    callback: () => void;
    context: any;
    events: Events;
}
export interface Barriers {
    [key: string]: Barrier[];
}
export interface Lookups {
    [key: string]: string[];
}
export default Emitter;