(Since version 0.19.1) No longer a ReactiveMongo case class
(Since version 0.18.5) Use the constructor with lastWrite
(Since version 0.19.1) Use the constructor with tag map
the unique identifier for each election, or -1
the set version, or -1 if unknown
(replicaSet: StringAdd).self
(replicaSet: StringFormat).self
(Since version 0.19.1) No longer a ReactiveMongo case class
(replicaSet: ArrowAssoc[ReplicaSet]).x
(Since version 2.10.0) Use leftOfArrow
instead
(replicaSet: Ensuring[ReplicaSet]).x
(Since version 2.10.0) Use resultOfEnsuring
instead