*
   * <p>This abstraction allows us to use single-instruction load and put when available, or fall
   * back on the slower approach of using Longs.fromBytes(byte...).
   */
  @VisibleForTesting
  interface LittleEndianBytes {
    long getLongLittleEndian(byte[] array, int offset);

    void putLongLittleEndian(byte[] array, int offset, long value);