syntax_data: {"ast_node_type":"import","tokens":[{"end":79,"kind":"keyword","start":0,"text":"///"}]}
source_snippet: /// `TypeFolder` instances use the methods in `TypeVisitableExt` while folding,
context_before: /// This trait is a sub-trait of `TypeVisitable`. This is because many
context_after: /// which means in practice almost every foldable type needs to also be