         return constraints
     }
     
-    public func pinToSuperviewEdges(_ insets: UIEdgeInsets) -> [NSLayoutConstraint]{
+    @discardableResult public func pinToSuperviewEdges(_ insets: UIEdgeInsets) -> [NSLayoutConstraint]{
         
         translatesAutoresizingMaskIntoConstraints = false;
         

        return constraint
    }
    
    public func pinViewsHorizonally(leftView: UIView, rightView: UIView, separation: CGFloat) -> NSLayoutConstraint{
        
        translatesAutoresizingMaskIntoConstraints = false
        

        return constraints
    }
    
    @discardableResult public func pinToSuperviewAsLeadingStrip(_ width: CGFloat) -> [NSLayoutConstraint]{
        
        var constraints = [NSLayoutConstraint]()
        constraints.append(pinToSuperviewLeading(0))
