BlockMetadata stores data used by the Raft OSNs when coordinating with each other, to be serialized into block meta dta field and used after failres and restarts.

ConfigMetadata is serialized and set as the value of ConsensusType.Metadata in a channel configuration when the ConsensusType.Type is set "etcdraft".

Consenter represents a consenting node (i.e.

Options to be specified for all the etcd/raft nodes.