static IEnumerable <Task> GetTasks(IPackageService service, CancellationToken token) { var id = Guid.NewGuid(); foreach (var iter in Enumerable.Range(0, 1000)) { yield return(service .CreatePreploadedVersionFilesAsync(id, id, id, "emh1ZmVuZw==", CancellationToken.None) ); ; } }