Problem with missing type after running New-StubModule about indented.stubcommand HOT 1 OPEN

Add-Type -IgnoreWarnings -TypeDefinition @'
namespace Microsoft.ActiveDirectory.Management.Commands
{
    public class ValidateNotNullOrEmptyADEntityAttribute : System.Management.Automation.ValidateArgumentsAttribute
    {
        // Constructor
        public ValidateNotNullOrEmptyADEntityAttribute() {}

        // Property
        public System.Object TypeId { get; set; }

        protected override void Validate(object arguments, System.Management.Automation.EngineIntrinsics engineIntrinsics) {}
    }
}
'@

$attributes = New-Object System.Collections.Generic.List[Attribute]
$attribute = New-Object Microsoft.ActiveDirectory.Management.Commands.ValidateNotNullOrEmptyADEntityAttribute
$attributes.Add($attribute)