Interface EventEmitter

interface EventEmitter {
    addEventListener(
        name: string,
        callback: Function,
        capturing?: boolean,
    ): void;
    off(name: string, callback: Function): void;
    on(name: string, callback: Function, capturing?: boolean): void;
    once(name: string, callback: Function): void;
    removeAllListeners(name?: string): void;
    removeDefaultHandler(name: string, callback: Function): void;
    removeEventListener(name: string, callback: Function): void;
    removeListener(name: string, callback: Function): void;
    setDefaultHandler(name: string, callback: Function): void;
}