如何写入stdin /从SSH连接的远程进程的stdout读取？ （Renci.SshNet）

I want to connect with an SSH server which, upon connection, runs a custom command which expects XML as input (UTF-8 encoded, multiple lines, with a special line at the end of each XML document marking its end) and outputs XML (UTF-8 encoded, multiple lines, with same special line at the end to signify end-of-document).I want to connect with an SSH server which, upo