{"ast_node_type":"other","tokens":[{"end":43,"kind":"keyword","start":0,"text":"MdTree::Strikethrough(txt)"}]}
            MdTree::Strikethrough(txt) => {
            MdTree::Emphasis(txt) => expand_plaintext(txt, &mut new_stream, MdTree::Emphasis),
                expand_plaintext(txt, &mut new_stream, MdTree::Strikethrough);