 ////////////////////
 
 extension CartographyKit: ToOtherViews{
-
+  @discardableResult
   public static func topToOtherViewsBottom(_ view1: View, otherView: View, plus: CGFloat) -> NSLayoutConstraint?{
     var c: NSLayoutConstraint?
     constrain(view1, otherView){ view1, otherView in

    return c
  }
  
  public static func bottomToOtherViewsTop(_ view1: View, otherView: View, minus: CGFloat) -> NSLayoutConstraint?{
    var c: NSLayoutConstraint?
    constrain(view1, otherView){ view1, otherView in

    return c
  }
  
  @discardableResult
  public static func topToOtherViewsCenterX(_ view1: View, otherView: View, plus: CGFloat) -> NSLayoutConstraint?{
    var c: NSLayoutConstraint?
    constrain(view1, otherView){ view1, otherView in
