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://paws-r.github.io/docs/neptune/start_db_cluster.html 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.