public IAsyncResult BeginDeclare(TimeSpan timeout, AsyncCallback callback, object state)
{
Utils.Trace(TraceLevel.Info, "{0}: Begin declare a transaction", this);
Declare declare = new Declare();
AmqpMessage message = Controller.CreateCommandMessage(declare);
return this.sendLink.BeginSendMessage(message, this.GetDeliveryTag(), AmqpConstants.EmptyBinary, timeout, callback, state);
}