function fetchMaintainerRoleList($packageType, $checkRoles)
 {
     $list = eZPackage::fetchMaintainerRoleList($packageType, $checkRoles);
     if ($list === false) {
         return array('error' => array('error_type' => 'kernel', 'error_code' => eZError::KERNEL_NOT_FOUND));
     }
     return array('result' => $list);
 }