-- | http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-docdb-dbcluster.html#cfn-docdb-dbcluster-preferredmaintenancewindow
ddbdbcPreferredMaintenanceWindow :: Lens' DocDBDBCluster (Maybe (Val Text))
ddbdbcPreferredMaintenanceWindow = lens _docDBDBClusterPreferredMaintenanceWindow (\s a -> s { _docDBDBClusterPreferredMaintenanceWindow = a })
ddbdbcPreferredMaintenanceWindow :: Lens' DocDBDBCluster (Maybe (Val Text))
ddbdbcPreferredMaintenanceWindow = lens _docDBDBClusterPreferredMaintenanceWindow (\s a -> s { _docDBDBClusterPreferredMaintenanceWindow = a })
ddbdbcPreferredMaintenanceWindow = lens _docDBDBClusterPreferredMaintenanceWindow (\s a -> s { _docDBDBClusterPreferredMaintenanceWindow = a })