code: public StreamPlan transferRanges(InetAddress to, InetAddress connecting, String keyspace, Collection<Range<Token>> ranges, String... columnFamilies)
      {
          StreamSession session = coordinator.getOrCreateNextSession(to, connecting);
          session.addTransferRanges(keyspace, ranges, Arrays.asList(columnFamilies), flushBeforeTransfer, repairedAt);
          return this;
      }
docs: Add transfer task to send data of specific {@code columnFamilies} under {@code keyspace} and {@code ranges}.
  
  @param to endpoint address of receiver
  @param connecting Actual connecting address of the endpoint
  @param keyspace name of keyspace
  @param ranges ranges to send
  @param columnFamilies specific column families
  @return this object for chaining