readInt method
Implementation
int readInt() {
  final value =
      _byteBuffer.buffer.asByteData().getInt32(_position, Endian.big);
  _position += 4;
  dirtyRead();
  return value;
}
int readInt() {
  final value =
      _byteBuffer.buffer.asByteData().getInt32(_position, Endian.big);
  _position += 4;
  dirtyRead();
  return value;
}