def visit_slice(self, node, parent):
newnode = nodes.Slice(parent=parent)<EOL>newnode.postinit(<EOL>_visit_or_none(node, "<STR_LIT>", self, newnode),<EOL>_visit_or_none(node, "<STR_LIT>", self, newnode),<EOL>_visit_or_none(node, "<STR_LIT>", self, newnode),<EOL>)<EOL>return newnode<EOL>
visit a Slice node by returning a fresh instance of it