// We don't want to assert in production code.
    assert offset >= 0 && offset + 8 <= sink.length;
    // Delegates to the fast (unsafe)version or the fallback.
    byteArray.putLongLittleEndian(sink, offset, value);
  }

  /**
   * Load 4 bytes from the provided array at the indicated offset.
   *
   * @param source the input bytes
   * @param offset the offset into the array at which to start