62     pub(crate) name: String,
70     proto: String,                        // "udp" or "tcp"
71     local: String,                        // "<local-ip>:<local-port>"
72     mapped: String,                       // "<mapped-ip>:<mapped-port>"
73     bound: String,                        // key: "[<remote-ip>[:<remote-port>]]"
74     filters: Arc<Mutex<HashSet<String>>>, // key: "[<remote-ip>[:<remote-port>]]"
81             proto: String::new(),                             // "udp" or "tcp"  in default()
82             local: String::new(),                             // "<local-ip>:<local-port>"  in default()
83             mapped: String::new(),                            // "<mapped-ip>:<mapped-port>"  in default()
84             bound: String::new(), // key: "[<remote-ip>[:<remote-port>]]"  in default()
93     pub(crate) name: String,
97 …pub(crate) outbound_map: Arc<Mutex<HashMap<String, Arc<Mapping>>>>, // key: "<proto>:<local-ip>:<l…
98 …pub(crate) inbound_map: Arc<Mutex<HashMap<String, Arc<Mapping>>>>, // key: "<proto>:<mapped-ip>:<m…
387                 (String::new(), String::new())  in find_outbound_mapping()
426                 (String::new(), String::new())  in find_inbound_mapping()
446     fn get_outbound_map_key(m: &Mapping) -> String {  in get_outbound_map_key()  argument
450     fn get_inbound_map_key(m: &Mapping) -> String {  in get_inbound_map_key()  argument