syntax_data: {"ast_node_type":"other","tokens":[{"end":75,"kind":"keyword","start":0,"text":"///"}]}
source_snippet: /// This can be done, for example, for `Ty<'tcx>` or `GenericArgsRef<'tcx>`
context_before: /// provided `TyCtxt<'tcx>`.
context_after: /// by looking them up in their respective interners.