36 def _SshCallWait(cmd, timeout=None):  argument
53     if timeout:
55         timer = threading.Timer(timeout, process.kill)
58     if timeout:
63 def _SshCall(cmd, timeout=None):  argument
80     if timeout:
82         timer = threading.Timer(timeout, process.kill)
85     if timeout:
90 def _SshLogOutput(cmd, timeout=None, show_output=False):  argument
113     if timeout:
115         timer = threading.Timer(timeout, process.kill)
124     if timeout:
133 def ShellCmdWithRetry(cmd, timeout=None, show_output=False):  argument
157         timeout=timeout,
191     def Run(self, target_command, timeout=None, show_output=False):  argument
208                           timeout,
243     def CheckSshConnection(self, timeout):  argument
255         if _SshCallWait(" ".join(remote_cmd), timeout) == 0:
261     def WaitForSsh(self, timeout=None, sleep_for_retry=_SSH_CMD_RETRY_SLEEP,  argument
274         timeout_one_round = timeout / max_retry if timeout else None
281             timeout=timeout_one_round or _WAIT_FOR_SSH_MAX_TIMEOUT)