{
  "DBInstanceIdentifier": "neptune-cluster-abc123",
  "DBInstanceClass": "db.r6g.large",
  "PreferredMaintenanceWindow": "example-string",
  "AutoMinorVersionUpgrade": true,
  "NewDBInstanceIdentifier": "neptune-cluster-abc123",
  "PromotionTier": 54,
  "ApplyImmediately": false
}