TestModule.cs

using System.Management.Automation;

namespace TestModule
{
    [CmdletBinding()]
    [Cmdlet(VerbsCommon.Get, "Hoge")]
    public class GetHoge : PSCmdlet
    {
        [Parameter(Mandatory = false, Position = 0, ValueFromPipeline = true)]
        public string Name { get; set; } = "Hoge";

        protected override void ProcessRecord() => this.WriteObject(this.Name);
    }
}