{"ast_node_type":"other","tokens":[{"end":73,"kind":"keyword","start":0,"text":"predicates.extend(region_pred.bounds.iter().map(|bound|"}]}
                predicates.extend(region_pred.bounds.iter().map(|bound| {
                    .lower_lifetime(region_pred.lifetime, RegionInferReason::RegionPredicate);
                    let (r2, span) = match bound {