#import // https://svgwg.org/svg2-draft/types.html#InterfaceSVGLengthList [Exposed=Window] interface SVGLengthList { readonly attribute unsigned long length; readonly attribute unsigned long numberOfItems; undefined clear(); SVGLength initialize(SVGLength newItem); getter SVGLength getItem(unsigned long index); SVGLength insertItemBefore(SVGLength newItem, unsigned long index); SVGLength replaceItem(SVGLength newItem, unsigned long index); SVGLength removeItem(unsigned long index); SVGLength appendItem(SVGLength newItem); setter undefined (unsigned long index, SVGLength newItem); };