code: public final <T> Command createGetMultiCommand(Collection<String> keys, CountDownLatch latch,
        CommandType cmdType, Transcoder<T> transcoder) {
      StringBuilder sb = new StringBuilder(keys.size() * 5);
      for (String tmpKey : keys) {
        ByteUtils.checkKey(tmpKey);
        sb.append(tmpKey).append(" ");
      }
      String gatherKey = sb.toString();
      byte[] keyBytes = ByteUtils.getBytes(gatherKey.substring(0, gatherKey.length() - 1));
      return new TextGetMultiCommand(keys.iterator().next(), keyBytes, cmdType, latch, transcoder);
    }
docs: /*
  (non-Javadoc)
  
  @see net.rubyeye.xmemcached.CommandFactory#createGetMultiCommand(java.util .Collection,
  java.util.concurrent.CountDownLatch, net.rubyeye.xmemcached.command.CommandType,
  net.rubyeye.xmemcached.transcoders.Transcoder)