public function WorkflowGetAttachedFileBody($request_form_id, $file_id)
 {
     // $request_form_id : IDType
     // $file_id         : IDType
     $this->CheckAndSetHeader(__FUNCTION__);
     $reg_args["parameter"]["request_form_id"] = $request_form_id;
     $reg_args["parameter"]["file_id"] = $file_id;
     $this->encodeString($reg_args);
     $results = parent::WorkflowGetAttachedFileBody($reg_args);
     $this->methodClose();
     return $this->decodeString($results);
 }