{"ast_node_type":"other","tokens":[{"end":75,"kind":"keyword","start":0,"text":"tcx.impl_of_assoc(def_id).map(|imp|"}]}
                    tcx.impl_of_assoc(def_id).map(|imp| tcx.def_kind(imp)),
                assert!(!matches!(
                    Some(DefKind::Impl { of_trait: true })