Binboo.Jira.Commands.PairsCommand.NextPair C# (CSharp) Method

        private static string NextPair(IEnumerator<string> randomUsers)
        {
            if (!randomUsers.MoveNext()) return null;

            string user1 = randomUsers.Current;
            if (!randomUsers.MoveNext()) return "[" + user1 + "]";

            return "[" + user1 + ", " + randomUsers.Current + "]";
        }