31     type Error;  typedef
34     fn read_exact(&mut self, data: &mut [u8]) -> Result<(), Self::Error>;  in read_exact()
43     type Error;  typedef
46     fn write_all(&mut self, data: &[u8]) -> Result<(), Self::Error>;  in write_all()
49     fn flush(&mut self) -> Result<(), Self::Error>;  in flush()
54     type Error = std::io::Error;  typedef
57     fn read_exact(&mut self, data: &mut [u8]) -> Result<(), Self::Error> {  in read_exact()
64     type Error = std::io::Error;  typedef
67     fn write_all(&mut self, data: &[u8]) -> Result<(), Self::Error> {  in write_all()
72     fn flush(&mut self) -> Result<(), Self::Error> {  in flush()
79     type Error = R::Error;  typedef
82     fn read_exact(&mut self, data: &mut [u8]) -> Result<(), Self::Error> {  in read_exact()
89     type Error = W::Error;  typedef
92     fn write_all(&mut self, data: &[u8]) -> Result<(), Self::Error> {  in write_all()
97     fn flush(&mut self) -> Result<(), Self::Error> {  in flush()
109     type Error = EndOfFile;  typedef
112     fn read_exact(&mut self, data: &mut [u8]) -> Result<(), Self::Error> {  in read_exact()
131     type Error = OutOfSpace;  typedef
134     fn write_all(&mut self, data: &[u8]) -> Result<(), Self::Error> {  in write_all()
146     fn flush(&mut self) -> Result<(), Self::Error> {  in flush()
153     type Error = core::convert::Infallible;  typedef
156     fn write_all(&mut self, data: &[u8]) -> Result<(), Self::Error> {  in write_all()
162     fn flush(&mut self) -> Result<(), Self::Error> {  in flush()