syntax_data: {"ast_node_type":"other","tokens":[{"end":71,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:     /// that calls a visitor method specifically for that type (such as
context_before:     /// For types of interest (such as `Ty`), the implementation of this method
context_after:     /// `V::visit_ty`). This is where control transfers from `TypeVisitable` to