-- | http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-neptune-dbcluster.html#cfn-neptune-dbcluster-backupretentionperiod
ndbcBackupRetentionPeriod :: Lens' NeptuneDBCluster (Maybe (Val Integer))
ndbcBackupRetentionPeriod = lens _neptuneDBClusterBackupRetentionPeriod (\s a -> s { _neptuneDBClusterBackupRetentionPeriod = a })
ndbcBackupRetentionPeriod :: Lens' NeptuneDBCluster (Maybe (Val Integer))
ndbcBackupRetentionPeriod = lens _neptuneDBClusterBackupRetentionPeriod (\s a -> s { _neptuneDBClusterBackupRetentionPeriod = a })
ndbcBackupRetentionPeriod = lens _neptuneDBClusterBackupRetentionPeriod (\s a -> s { _neptuneDBClusterBackupRetentionPeriod = a })