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