{"ast_node_type":"function","tokens":[{"end":96,"kind":"keyword","start":0,"text":"\"fn"}]}
            "fn f() { if$0 doc_style.is_some() { Class::DocComment } else { Class::Comment } }",
            invert_if,
            "fn f() { if doc_style.is_none() { Class::Comment } else { Class::DocComment } }",