/*
5 * Authors: see git history
7 * Copyright (C) 2018 Authors
8 * Released under GNU GPL v2+, read the file
'COPYING' for more information.
16 return is<SPFilter>(obj) && URIReference::_acceptObject(obj);
bool _acceptObject(SPObject *obj) const override
SPObject is an abstract base class of all of the document nodes at the SVG document level.
TODO: insert short description here.