With the following Action method, what is the right way to describe the `bool` in a comment?

```
public class MainPage : MasterDetailPage
{

    public MainPage()
    {
        Title = Strings.app_title;

        // here the Action gets injected into the constructor of the master page
        var master = new MainMenu(OnToggleRequest());
        var detail = new NavigationPage(new ModulePage { Title = Strings.app_title });

        Master = master;
        Detail = detail;
    }

    /// <summary>
    /// Toggles the Navigation Drawer
    /// </summary>
    /// <returns>An Action<bool?> where bool indicates if the Navigation Drawer Should Be Presented</returns>
    /// <remarks>If the bool is null, then the Navigation Drawer state will simply be toggled</remarks>
    private Action<bool?> OnToggleRequest()
    {
        return shouldBePresented =>
        {
            if (shouldBePresented == null)
            {
                // just switch it
                IsPresented = !IsPresented;
            }
            else
            {
                // manually set it
                IsPresented = (bool)shouldBePresented;
            }
        };
    }
}

```