protected void updateLastPushedSequenceIdForSerialPeer(MasterProcedureEnv env)
    throws IOException, ReplicationException {
    throw new UnsupportedOperationException();
  }
The implementation class should override this method if the procedure may enter the serial
related states.
hbase-server/src/main/java/org/apache/hadoop/hbase/master/replication/ModifyPeerProcedure.java