static public InputAtom_Slider GetAsSlider(this InputAtom_Button item, float value = 1.0f)
 {
     return(item.IfNotNull(i => new InputAtom_Slider_Button(i, value)));
 }
 static public InputAtom_Axis GetAsAxis(this InputAtom_Button item, float value = 1.0f)
 {
     return(item.IfNotNull(i => new InputAtom_Axis_Button(i, value)));
 }