import EventEmitter from 'events'; export const ANY_EVENT = '*'; // Extends the built-in EventEmitter with support for listening for any event. // See https://stackoverflow.com/a/54431931. export class AnyEventEmitter extends EventEmitter { emit(type: string, ...args: any[]): boolean { super.emit(ANY_EVENT, ...args); return super.emit(type, ...args) || super.emit('', ...args); } }