{"ast_node_type":"other","tokens":[{"end":83,"kind":"keyword","start":0,"text":"self.tcx.type_of(def_id).instantiate(self.tcx,"}]}
                        self.tcx.type_of(def_id).instantiate(self.tcx, args).kind()
                    &ty::Alias(ty::Opaque, ty::AliasTy { def_id, args, .. }) => {
                    }