如何在编写gnome-extensions时获取操作系统名称

const { Gio, GLib } = imports.gi;

const settings = new Gio.Settings({ schema_id: 'org.gnome.desktop.session' });
const systemName = settings.get_string('session-name');

log(systemName);

const { Gio, GLib } = imports.gi;

function init() {
  // 初始化函数，此处为空
}

function enable() {
  const settings = new Gio.Settings({ schema_id: 'org.gnome.desktop.session' });
  const systemName = settings.get_string('session-name');
  log(systemName);
}

function disable() {
  // 禁用函数，此处为空
}