public static async Task AddOrUpdateAlertRangeSavingChanges(this DbSet <AlertStoreItem> dbSet, List <Alert> items)
{
foreach (var item in items ?? throw new ArgumentNullException(nameof(items)))
{
dbSet.AddOrUpdateAlert(item);
await dbSet.GetContext()
.SaveChangesAsync()
.ConfigureAwait(false);
}
}
