{"ast_node_type":"other","tokens":[{"end":26,"kind":"keyword","start":0,"text":"predicates"}]}
                predicates
                let ct = icx.lowerer().lower_const_param(param_def_id, param.hir_id);
                    .insert((ty::ClauseKind::ConstArgHasType(ct, ct_ty).upcast(tcx), param.span));