syntax_data: {"ast_node_type":"other","tokens":[{"end":81,"kind":"keyword","start":0,"text":"Ty::new_alias(tcx,"}]}
source_snippet:         Ty::new_alias(tcx, ty::Opaque, AliasTy::new_from_args(tcx, def_id, args))
context_before:     pub fn new_opaque(tcx: TyCtxt<'tcx>, def_id: DefId, args: GenericArgsRef<'tcx>) -> Ty<'tcx> {
context_after:     }