{"ast_node_type":"other","tokens":[{"end":37,"kind":"keyword","start":0,"text":"f.debug_struct(\"TokenStream\")"}]}
        f.debug_struct("TokenStream")
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
            .field("token_trees", &tt::TokenTreesView::new(&self.token_trees))