code: Map<String, VectorClock> getReplicatedVectorClocks(String serviceName, String memberUUID) {
          return replicationVectorClocks.getReplicatedVectorClock(serviceName, memberUUID);
      }
docs: Returns the vector clocks for the given {@code serviceName} and
  {@code memberUUID}.
  The vector clock map contains mappings from CRDT name to the last
  successfully replicated CRDT vector clock. All CRDTs in this map should
  be of the same type.
  If there are no vector clocks for the given parameters, this method
  returns an empty map.
  
  @param serviceName the service name
  @param memberUUID  the target member UUID
  @return the last successfully replicated CRDT state vector clocks or
  an empty map if the CRDTs have not yet been replicated to this member
  @see CRDTReplicationAwareService