syntax_data: {"ast_node_type":"other","tokens":[{"end":46,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:     /// the behavior in sync across functions.
context_before:     /// Same as [`TypeFoldable::try_fold_with`], but not fallible. Make sure to keep
context_after:     fn fold_with<F: TypeFolder<I>>(self, folder: &mut F) -> Self;