public static function getImportTypes()
 {
     if (!self::$datatypes) {
         self::$datatypes = array("anything" => _IMPORTANYTHING, "users" => _USERS, "users_to_courses" => _USERSTOCOURSES, "users_to_lessons" => _USERSTOLESSONS);
         if (G_VERSIONTYPE != 'community') {
             #cpp#ifndef COMMUNITY
             self::$datatypes["users_to_groups"] = _USERSTOGROUPS;
         }
         #cpp#endif
         if (G_VERSIONTYPE == 'enterprise') {
             #cpp#ifdef ENTERPRISE
             self::$datatypes["branches"] = _BRANCHES;
             self::$datatypes["job_descriptions"] = _JOBDESCRIPTIONS;
             self::$datatypes["skills"] = _SKILLS;
             self::$datatypes["users_to_jobs"] = _USERSTOJOBS;
             self::$datatypes["users_to_skills"] = _USERSTOSKILLS;
         }
         #cpp#endif
     }
     return self::$datatypes;
 }