in src/Filter/ApiFilter.php [21:38]
public static function serviceCode($serviceCode)
{
if (!is_string($serviceCode)) {
throw new ClientException(
'Service Code must be a string',
SDK::INVALID_ARGUMENT
);
}
if ($serviceCode === '') {
throw new ClientException(
'Service Code cannot be empty',
SDK::INVALID_ARGUMENT
);
}
return $serviceCode;
}