public async Task CancelAllOrders(CancelAllOrdersParameter parameter, CancellationToken cancellationToken = default)
 {
     await Post(CancelAllOrdersApiPath, parameter, cancellationToken : cancellationToken).ConfigureAwait(false);
 }
 public async Task CancelAllOrders(CancelAllOrdersParameter parameter)
 {
     await Post(CancelAllOrdersApiPath, parameter);
 }