{"ast_node_type":"other","tokens":[{"end":66,"kind":"keyword","start":0,"text":"|"}]}
            | hir::OpaqueTyOrigin::AsyncFn { parent, .. } = origin
            if let hir::OpaqueTyOrigin::FnReturn { parent, .. }
                && let hir::Node::TraitItem(trait_item) = tcx.hir_node_by_def_id(parent)