{"ast_node_type":"other","tokens":[{"end":99,"kind":"keyword","start":0,"text":"new_stream.dedup_by(|r,"}]}
    new_stream.dedup_by(|r, l| matches!((r, l), (MdTree::ParagraphBreak, MdTree::ParagraphBreak)));
    new_stream.retain(|x| !matches!(x, MdTree::Comment(_) | MdTree::LinkDef { .. }));