public Task<PurchaseProvisionedCapacityResponse> PurchaseProvisionedCapacityAsync(PurchaseProvisionedCapacityRequest request, System.Threading.CancellationToken cancellationToken = default(CancellationToken))
{
var marshaller = new PurchaseProvisionedCapacityRequestMarshaller();
var unmarshaller = PurchaseProvisionedCapacityResponseUnmarshaller.Instance;
return InvokeAsync<PurchaseProvisionedCapacityRequest,PurchaseProvisionedCapacityResponse>(request, marshaller,
unmarshaller, cancellationToken);
}