43     fn try_from(value: i32) -> Result<Self, Self::Error> {  in try_from()
72     fn read(&self, buf: &mut [u8]) -> (Result<usize, SystemError>, Endpoint);  in read()
80     fn write(&self, buf: &[u8], to: Option<Endpoint>) -> Result<usize, SystemError>;  in write()
92     fn connect(&mut self, endpoint: Endpoint) -> Result<(), SystemError>;  in connect()  argument
101     fn bind(&mut self, _endpoint: Endpoint) -> Result<(), SystemError> {  in bind()  argument
112     fn shutdown(&self, _type: ShutdownType) -> Result<(), SystemError> {  in shutdown()  argument
121     fn listen(&mut self, _backlog: usize) -> Result<(), SystemError> {  in listen()  argument
130     fn accept(&mut self) -> Result<(Box<dyn Socket>, Endpoint), SystemError> {  in accept()
177     ) -> Result<usize, SystemError> {  in ioctl()
182     fn metadata(&self) -> Result<SocketMetadata, SystemError>;  in metadata()
198     ) -> Result<(), SystemError> {  in setsockopt()  argument
228     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {  in fmt()  argument