public function BulletinGetFollows($topic_id, $offset, $limit)
 {
     // $topic_id : base:IDType(string := integer) .. Bulletin board ID
     // $offset   : integer
     // $limit    : integer
     $this->CheckAndSetHeader(__FUNCTION__);
     $reg_args["topic_id"] = $topic_id;
     $reg_args["offset"] = $offset;
     $reg_args["limit"] = $limit;
     $this->encodeString($reg_args);
     $results = parent::BulletinGetFollows($reg_args);
     $this->methodClose();
     return $this->RetvalConvertArray($results->follow);
 }