code: public java.util.List<ReplicationGroup> getReplicationGroups() {
          if (replicationGroups == null) {
              replicationGroups = new com.amazonaws.internal.SdkInternalList<ReplicationGroup>();
          }
          return replicationGroups;
      }
docs: <p>
  A list of replication groups. Each item in the list contains detailed information about one replication group.
  </p>
  
  @return A list of replication groups. Each item in the list contains detailed information about one replication
  group.