- meth left: Int is abstract
- meth right: Int is abstract
- meth top: Int is abstract
- meth bottom: Int is abstract
- meth width: Int is abstract
- meth height: Int is abstract
+ fun left: Int is abstract
+ fun right: Int is abstract
+ fun top: Int is abstract
+ fun bottom: Int is abstract
+ fun width: Int is abstract
+ fun height: Int is abstract