dbSize is the size of the backend database physically allocated, in bytes, of the responding member.

dbSizeInUse is the size of the backend database logically in use, in bytes, of the responding member.

errors contains alarm/health information and status.

isLearner indicates if the member is raft learner.

leader is the member ID which the responding member believes is the current leader.

raftAppliedIndex is the current raft applied index of the responding member.

raftIndex is the current raft committed index of the responding member.

raftTerm is the current raft term of the responding member.

version is the cluster protocol version used by the responding member.