public static async Task <QuotaOperationResult> AcquireQuotaAsync( string engagementAccount, string quotaName, int required) { Validator.ArgumentNotNullOrEmpty(engagementAccount, nameof(engagementAccount)); Validator.ArgumentNotNullOrEmpty(quotaName, nameof(quotaName)); EnsureService(); var result = await service.AcquireQuotaAsync( engagementAccount, quotaName, required); if (result.Status != HttpStatusCode.OK) { throw new QuotaExceededException( engagementAccount, quotaName, result.Remaining); } return(result); }