public function AddressFileDownload($file_id)
{
// $file_id : IDType (only ONE ID)
$this->CheckAndSetHeader(__FUNCTION__);
$reg_args["file_id"] = $file_id;
$this->encodeString($reg_args);
$results = parent::AddressFileDownload($reg_args);
$this->methodClose();
return $results->file->content;
// returns file body (already base64decoded)
}
