public function BulletinGetCategoryVersions($category_item = false)
 {
     // $category_item : (optional) CbgrnItemVersionType class or this array
     $this->CheckAndSetHeader(__FUNCTION__);
     $reg_args = array();
     if ($category_item !== false) {
         $reg_args["category_item"] = $this->getRegularArgs($category_item, __FUNCTION__, "CbgrnItemVersionType");
     }
     $this->encodeString($reg_args);
     $results = parent::BulletinGetCategoryVersions($reg_args);
     $this->methodClose();
     return $this->decodeString($results->category_item);
 }