interface EqEventCallback {
    id: string;
    callback: (event: EqEvent) => void;
}
interface EqEventTypeRec {
    type: string;
    eventCallbacks: Array<EqEventCallback>;
}
/**
 * Represents EasyQuery event
 */
export interface EqEvent {
    /**
     * The type of the event
     */
    type: string;
    /**
     * The source of the event
     */
    source: any;
    /**
     * The additional data of the event
     */
    data?: any;
}
/**
 * The representation of event emitter.
 */
export declare class EventEmitter {
    /**
     * The array of events.
     */
    protected events: EqEventTypeRec[];
    /**
     * The source.
     */
    protected source: any;
    private silentMode;
    /**
     * The default constructor.
     * @param source The source.
     */
    constructor(source: any);
    /**
     * Subscries to the event.
     * @param eventType The event type.
     * @param callback The callback.
     * @returns The subscribtion ID.
     */
    subscribe(eventType: string, callback: (event: EqEvent) => void): string;
    /**
     * Unsubsribes from the event.
     * @param eventType The event type.
     * @param callbackId The subscribtion ID.
     */
    unsubscribe(eventType: string, callbackId: string): void;
    /**
     * Fires the event.
     * @param eventType The event type.
     * @param data The event data.
     * @param postpone  The postpone.
     * @param force To fire force. If value is `true`, ignores silent mode.
     */
    fire(eventType: string, data?: any, postpone?: number, force?: boolean): void;
    /**
     * Enters to silent mode.
     */
    enterSilentMode(): void;
    /**
     * Exits from silent mode.
     */
    exitSilentMode(): void;
    /**
     * Checks if emitter is in silent mode.
     * @return `true`, if silent mode is enable.
     */
    isSilent(): boolean;
    private getEventRecByType;
}
export {};