{"ast_node_type":"other","tokens":[{"end":91,"kind":"keyword","start":0,"text":"debug_assert!(!self.universal_regions().is_local_free_region(upper_bound));"}]}
                debug_assert!(!self.universal_regions().is_local_free_region(upper_bound));
                debug_assert!(self.universal_regions().is_universal_region(upper_bound));