class EventEmitter  :3-20
  constructor()  :4-6
  on(event, handler)  :8-11
  emit(event, data)  :13-15
  static create()  :17-19
export class ApiClient  :22-35
  constructor(baseUrl)  :23-26
  async get(path)  :28-30
  async post(path, body)  :32-34
export async function fetchUser(id)  :37-39
export const createSession = async (userId) =>  :41-43
module.exports = { EventEmitter, ApiClient, fetchUser }  :45-45
