public static GetLastFlushedSequenceIdRequest
    buildGetLastFlushedSequenceIdRequest(byte[] regionName) {
    return GetLastFlushedSequenceIdRequest.newBuilder()
      .setRegionName(UnsafeByteOperations.unsafeWrap(regionName)).build();
  }
Creates a request for querying the master the last flushed sequence Id for a region
@return A {@link GetLastFlushedSequenceIdRequest}
hbase-client/src/main/java/org/apache/hadoop/hbase/shaded/protobuf/RequestConverter.java