Scalr\Api\Service\User\V1beta0\Controller\ScriptVersions::getVersion PHP Method

    public function getVersion($scriptId, $versionNumber, $modify = false)
    {
        $version = ScriptVersion::findPk($scriptId, $versionNumber);
        if (!$version) {
            throw new ApiErrorException(404, ErrorMessage::ERR_OBJECT_NOT_FOUND, "Requested Version either does not exist or is not owned by your environment.");
        }
        if (!$this->hasPermissions($version, $modify)) {
            //Checks entity level write access permissions
            throw new ApiErrorException(403, ErrorMessage::ERR_PERMISSION_VIOLATION, "Insufficient permissions");
        }
        return $version;
    }