syntax_data: {"ast_node_type":"other","tokens":[{"end":28,"kind":"keyword","start":0,"text":"///"}]}
source_snippet: /// provided `TyCtxt<'tcx>`.
context_before: /// efficiently converted to `X<'tcx>` as long as they are part of the
context_after: /// This can be done, for example, for `Ty<'tcx>` or `GenericArgsRef<'tcx>`