syntax_data: {"ast_node_type":"other","tokens":[{"end":74,"kind":"keyword","start":0,"text":"Ok((self.0.try_fold_with(folder)?,"}]}
source_snippet:         Ok((self.0.try_fold_with(folder)?, self.1.try_fold_with(folder)?))
context_before:     fn try_fold_with<F: FallibleTypeFolder<I>>(self, folder: &mut F) -> Result<(T, U), F::Error> {
context_after:     }