spectre.console/examples/Cli/Delegates/BarSettings.cs

using System.ComponentModel;
using Spectre.Console.Cli;

namespace Delegates
{
    public static partial class Program
    {
        public sealed class BarSettings : CommandSettings
        {
            [CommandOption("--count")]
            [Description("The number of bars to print")]
            [DefaultValue(1)]
            public int Count { get; set; }
        }
    }
}