/**
 * A container for {@link Event} instances where each event is
 * keyed by name.
 *
 * @public
 * @extends {Disposable}
 */
export default class EventMap extends Disposable {
    /**
     * Fires the appropriate event which is mapped to the event name.
     * See {@link Event#fire} for more information.
     *
     * @public
     * @param {string} eventName - The event's name.
     * @param {*} data - The data to provide to observers.
     */
    public fire(eventName: string, data: any): void;
    /**
     * Registers a handler. See {@link Event#register} for more information.
     *
     * @public
     * @param {string} eventName - The event's name.
     * @param {Function} handler
     * @returns {Disposable}
     */
    public register(eventName: string, handler: Function): Disposable;
    /**
     * Removes a handler. See {@link Event#unregister} for more information.
     *
     * @public
     * @param {string} eventName - The event's name.
     * @param {Function} handler
     */
    public unregister(eventName: string, handler: Function): void;
    /**
     * Clears an event's handlers. See {@link Event#clear} for more information.
     *
     * @public
     * @param {string} eventName - The event's name.
     */
    public clear(eventName: string): void;
    /**
     * Returns true, if no handlers are currently registered for the
     * specified event. See {@link Event#getIsEmpty} for more information.
     *
     * @public
     * @param {string} eventName
     * @returns {boolean}
     */
    public getIsEmpty(eventName: string): boolean;
    /**
     * Returns an array of all the event names.
     *
     * @public
     * @returns {Array<string>}
     */
    public getKeys(): Array<string>;
    /**
     * Returns true, if an event with the given name exists.
     *
     * @public
     * @param {string} key
     * @returns {boolean}
     */
    public hasKey(key: string): boolean;
    #private;
}
import Disposable from './../lang/Disposable.js';