code: def _run_command(self, ssh, cmd, pty=True):
          
  
          if isinstance(cmd, str):
              cmd = shlex.split(cmd)
  
          if type(cmd) is not list:
              cmd = [cmd]
  
          cmds = ' '.join(cmd)
          stdin, stdout, stderr = ssh.exec_command(cmds, get_pty=pty)
          retcode = stdout.channel.recv_exit_status()
  
          if retcode > 0:
              output = stderr.read().strip()
              raise CalledProcessError(returncode=retcode, cmd=cmd,
                                       output=output)
          return (
              stdout.read().decode('utf-8').strip(),
              stderr.read().decode('utf-8').strip()
          )
docs: Run a command remotely via SSH.
  
          :param object ssh: The SSHClient
          :param str cmd: The command to execute
          :param list cmd: The `shlex.split` command to execute
          :param bool pty: Whether to allocate a pty
  
          :return: tuple: The stdout and stderr of the command execution
          :raises: :class:`CalledProcessError` if the command fails