We played a bit with my IO fork and it does not seem to work as well as expected (at least @Zelenyi regularily finds some failing test cases). I like the API, but the problem is that

Bytes

is not a suted to be a temporary data container due to its volatility. I still do want to be able to copy part of input to a temporary storage object which later could be read from as Input and written to output as a whole. We can certainly do it via

ByteArray

, but it means additional copy on any such operation. Instead I am thinking about following thing: we can add additional Binary reading operation into `Input`: By default it reads byte array of given length, but when read from a random-access entity like file or

ByteArray

it is overwritten by method that does not copy array, but instead creates a

Binary

which references initial structure and holds offset and size. Thus it could be read and written without additional copy.