syntax_data: {"ast_node_type":"other","tokens":[{"end":70,"kind":"keyword","start":0,"text":"///"}]}
source_snippet: /// with some concrete region before being used. There are two kind of
context_before: /// These are regions that are stored behind a binder and must be instantiated
context_after: /// bound regions: early-bound, which are bound in an item's `Generics`,