code: function Device(apple_id, password, display_name) {
    if (!(this instanceof Device)) return new Device(apple_id, password, display_name);
    this.apple_id = apple_id;
    this.password = password;
    this.display_name = display_name;
    this.devices = [];
    this.authenticated = false;
  }
docs: Initialize a new `Device`.
  @param {String} username
  @param {String} password
  @param {String} device_name