Starts an Amazon Neptune DB cluster that was stopped using the Amazon console, the Amazon CLI stop-db-cluster command, or the StopDBCluster API.
See https://www.paws-r-sdk.com/docs/neptune_start_db_cluster/ for full documentation.
neptune_start_db_cluster(DBClusterIdentifier)
[required] The DB cluster identifier of the Neptune DB cluster to be started. This parameter is stored as a lowercase string.