public void SendInv(string address, string kind, List <byte[]> items)
{
var message = new CommandMessage();
message.Command = CommandType.Inv;
message.Client = _blockchainPeer.ClientDetails();
var inv = new Inv()
{
Items = items,
Kind = kind
};
message.Data = inv.Serialize();
_blockchainPeer.SendMessageToAddressAsync(message, address);
}