private Task AcknowledgeAsync(Subscriptions subscriptionsClient, IEnumerable <string> ackIds, CancellationToken cancellationToken) { return(subscriptionsClient.AcknowledgeAsync($"projects/{triggerAttribute.ProjectId}/subscriptions/{triggerAttribute.SubscriptionId}", new AcknowledgeRequest() { ackIds = ackIds }, null, cancellationToken)); }