using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Beam.Temporary.Cli {
    public static class StringExtensions {
        public static string Aggregate(this IEnumerable<string> str, string separator) {
            if (!str.Any())
                return string.Empty;
            return str.Aggregate((x, y) => $"{x}{separator}{y}");
        }
    }
}