public Task DeleteTargetGroupsAsync(IEnumerable <string> arns, CancellationToken cancellationToken = default(CancellationToken))
=> arns.ForEachAsync(arn => _clientV2.DeleteTargetGroupAsync(
new DeleteTargetGroupRequest()
{
TargetGroupArn = arn
}, cancellationToken),
_maxDegreeOfParalelism,
cancellationToken
).EnsureSuccess();