public static NavbarToggle <THelper> SetHamburger <THelper>(this NavbarToggle <THelper> navbarToggle, bool hamburger = true)
     where THelper : BootstrapHelper <THelper>
 {
     navbarToggle.Hamburger = hamburger;
     return(navbarToggle);
 }
 public static NavbarToggle <THelper> SetDataTarget <THelper>(this NavbarToggle <THelper> navbarToggle, string dataTarget)
     where THelper : BootstrapHelper <THelper>
 {
     navbarToggle.DataTarget = dataTarget;
     return(navbarToggle);
 }