Umbraco-CMS/src/Umbraco.Core/Components/UmbracoUserComponentBase.cs

namespace Umbraco.Core.Components
{
    /// <summary>
    /// Provides a base class for <see cref="IUmbracoUserComponent"/> implementations.
    /// </summary>
    public abstract class UmbracoUserComponentBase : UmbracoComponentBase, IUmbracoUserComponent
    { }
}