public Task <XpackUsageResponse> UsageAsync(Action <XpackUsageRequestDescriptor> configureRequest = null, CancellationToken cancellationToken = default)
        {
            var descriptor = new XpackUsageRequestDescriptor();

            configureRequest?.Invoke(descriptor);
            descriptor.BeforeRequest();
            return(DoRequestAsync <XpackUsageRequestDescriptor, XpackUsageResponse>(descriptor));
        }
        public XpackUsageResponse Usage(Action <XpackUsageRequestDescriptor> configureRequest = null)
        {
            var descriptor = new XpackUsageRequestDescriptor();

            configureRequest?.Invoke(descriptor);
            descriptor.BeforeRequest();
            return(DoRequest <XpackUsageRequestDescriptor, XpackUsageResponse>(descriptor));
        }