public function BulletinRemoveTopics($topic_id, $is_draft = false)
 {
     // $topic_id : base:IDType (string := integer)
     // $is_draft : boolean
     $this->CheckAndSetHeader(__FUNCTION__);
     $tmp = array();
     $tmp["topic_id"] = $topic_id;
     $tmp["is_draft"] = $is_draft == true ? true : false;
     $reg_args["topics"] = $tmp;
     $this->encodeString($reg_args);
     $results = parent::BulletinRemoveTopics($reg_args);
     $this->methodClose();
     return $this->decodeString($results);
 }