{"ast_node_type":"other","tokens":[{"end":82,"kind":"keyword","start":0,"text":"libc::qos_class_t::QOS_CLASS_BACKGROUND"}]}
            libc::qos_class_t::QOS_CLASS_BACKGROUND => Some(QoSClass::Background),
            libc::qos_class_t::QOS_CLASS_UTILITY => Some(QoSClass::Utility),