ArcToolkitCLI/ArcToolkitCLI/Commands/Options/IInputOptions.cs

using System.Collections.Generic;
using CommandLine;

namespace ArcToolkitCLI.Commands.Options
{
    internal interface IInputOptions
    {
        [Value(0, MetaName = "input", HelpText = "Input ARC files")]
        IEnumerable<string> Input { get; set; }
    }
}