public async Task AddFile()
{
var client = new RdNetClient(Setup.APP_ID, Setup.DEVICE_CODE, Setup.CLIENT_ID, Setup.CLIENT_SECRET, Setup.ACCESS_TOKEN, Setup.REFRESH_TOKEN);
const String filePath = @"big-buck-bunny.torrent";
var file = await File.ReadAllBytesAsync(filePath);
var result = await client.AddTorrentFileAsync(file);
}