code: function serverStatus(admin, options, callback) {
    executeDbAdminCommand(admin.s.db, { serverStatus: 1 }, options, callback);
  }
docs: Retrieve this db's server status.
  
  @param {Admin} a collection instance.
  @param {Object} [options] Optional settings. See Admin.prototype.serverStatus for a list of options.
  @param {Admin~resultCallback} [callback] The command result callback