{"ast_node_type":"impl","tokens":[{"end":83,"kind":"keyword","start":0,"text":"|"}]}
            | hir::OpaqueTyOrigin::AsyncFn { parent: owner, in_trait_or_impl } => {
            hir::OpaqueTyOrigin::FnReturn { parent: owner, in_trait_or_impl }
                if in_trait_or_impl == Some(hir::RpitContext::Trait)