Using Func<T> to keep code DRY

Builder_FuncToReturnThis.cs

Func<Action, ModelBuilder> ReturnBuilderAfter => a => { a(); return this; };

public ModelBuilder AddItem<T>(string name, T value) => ReturnBuilderAfter(() => {
  _Model.Items.Add(new ModelItem() {
      Name = name,
      Value = value.ToString(),
      ItemType = value.GetType().ToString() 
  });
});

public ModelBuilder AddItem<T>(ModelItem m) => ReturnBuilderAfter(() => {
  _Model.Items.Add(m);
});

public ModelBuilder RemoveItem<T>(ModelItem m) => ReturnBuilderAfter(() => {
  _Model.Items.Remove(m);
});