no-linq.cs

            var dkimRecords = new ArrayList();
            for (int i = 0; i < 1; i++)
            {
                dkimRecords.Add(new Record($"{name}-dkim-token-{i}", new RecordArgs
                {
                    ZoneId = zone.ZoneId,
                    Name = domainDkim.DkimTokens.Apply(tokens =>
                        domainDkim.Domain.Apply(domain =>
                            $"{tokens[i]}._domainkey.{domain}")),
                    Type = "CNAME",
                    Ttl = 600,
                    Records =
                    {
                        domainDkim.DkimTokens.Apply(tokens =>
                            $"{tokens[i]}.dkim.amazonses.com")
                    }
                }, new CustomResourceOptions
                {
                    Parent = this,
                }));
            }

with-linq.cs

            var dkimRecords = domainDkim.DkimTokens.Apply(tokens =>
                tokens.Select((token, idx) =>
                    new Record($"{name}-dkim-token-{idx}", new RecordArgs
                    {
                        ZoneId = zone.ZoneId,
                        Name = domainDkim.Domain.Apply(domain => $"{token}._domainkey.{domain}"),
                        Type = "CNAME",
                        Ttl = 600,
                        Records = {$"{token}.dkim.amazonses.com"}
                    }, new CustomResourceOptions
                    {
                        Parent = this,
                    })));