syntax_data: {"ast_node_type":"other","tokens":[{"end":63,"kind":"keyword","start":0,"text":"pub"}]}
source_snippet: pub trait TypeFoldable<I: Interner>: TypeVisitable<I> + Clone {
context_before: /// foldable.)
context_after:     /// The entry point for folding. To fold a value `t` with a folder `f`