{"ast_node_type":"other","tokens":[{"end":131,"kind":"keyword","start":0,"text":"matches!(tt.token_trees().flat_tokens(),"}]}
                matches!(tt.token_trees().flat_tokens(), [tt::TokenTree::Leaf(tt::Leaf::Ident(ident))] if ident.sym == sym::hidden)
            tt.top_subtree().delimiter.kind == DelimiterKind::Parenthesis &&
        })