syntax_data: {"ast_node_type":"other","tokens":[{"end":70,"kind":"keyword","start":0,"text":"///"}]}
source_snippet: /// efficiently converted to `X<'tcx>` as long as they are part of the
context_before: /// A trait implemented for all `X<'a>` types that can be safely and
context_after: /// provided `TyCtxt<'tcx>`.