<filename>dnnsvg/svgeables/svgeable.py
class SVGeable(object):
    def to_svg(self):
        raise NotImplementedError('to_svg() not implemented')

<filename>dnnsvg/svgeables/svgeable.py
class SVGeable(object):
    def to_svg(self):
        raise NotImplementedError('to_svg() not implemented')
