private async Task <MemoryStream> DeflateAsync(byte[] data, int level, bool zlib)
{
var memoryStream = new MemoryStream();
var deflater = new Deflater(level, !zlib);
using (DeflaterOutputStream outStream = new DeflaterOutputStream(memoryStream, deflater))
{
outStream.IsStreamOwner = false;
await outStream.WriteAsync(data, 0, data.Length);
await outStream.FlushAsync();
await outStream.FinishAsync(CancellationToken.None);
}
return(memoryStream);
}