code: public static Filter hbaseToTimestampRangeFilter(long hbaseStartTimestamp,
        long hbaseEndTimestamp) {
      return toTimestampRangeFilter(
          TimestampConverter.hbase2bigtable(hbaseStartTimestamp),
          TimestampConverter.hbase2bigtable(hbaseEndTimestamp));
    }
docs: Converts a [startMs, endMs) timestamps to a Cloud Bigtable [startMicros, endMicros) filter.
  
  @param hbaseStartTimestamp a long value.
  @param hbaseEndTimestamp a long value.
  @return a {@link Filter} object.