public Task <EmptyResponse> Cancel(string orderId, CancellationToken cancellationToken = default)
{
return(_rest.Post <object, EmptyResponse>($"orders/cancel?orderId={orderId}", null,
cancellationToken));
}
public async Task <EmptyResponse> Register(CancellationToken cancellationToken = default)
{
return(await _rest.Post <object, EmptyResponse>($"sandbox/register",
null, cancellationToken));
}