7     type Error = SendError;  typedef
12     ) -> Poll<Result<(), Self::Error>> {  in poll_ready()
19     ) -> Result<(), Self::Error> {  in start_send()
26     ) -> Poll<Result<(), Self::Error>> {  in poll_flush()
39     ) -> Poll<Result<(), Self::Error>> {  in poll_close()
46     type Error = SendError;  typedef
51     ) -> Poll<Result<(), Self::Error>> {  in poll_ready()
58     ) -> Result<(), Self::Error> {  in start_send()
65     ) -> Poll<Result<(), Self::Error>> {  in poll_flush()
72     ) -> Poll<Result<(), Self::Error>> {  in poll_close()
79     type Error = SendError;  typedef
84     ) -> Poll<Result<(), Self::Error>> {  in poll_ready()
88     fn start_send(self: Pin<&mut Self>, msg: T) -> Result<(), Self::Error> {  in start_send()  argument
96     ) -> Poll<Result<(), Self::Error>> {  in poll_flush()
103     ) -> Poll<Result<(), Self::Error>> {  in poll_close()