class_docstr: An AutoDist Cluster Based on SSH.
code: def __init__(self, resource_spec):
      self._ssh_conf = resource_spec.ssh_config_map
      super().__init__(resource_spec)
  
imports: import atexit
  import contextlib
  import json
  import os
  import signal
  import subprocess
  import sys
  import warnings
  from abc import ABCMeta, abstractmethod
  import paramiko
  from autodist.const import DEFAULT_PORT_RANGE, DEFAULT_WORKING_DIR, ENV
  from autodist.resource_spec import ResourceSpec
  from autodist.utils import logging
label_desc: Use image node_id 1 to create a new SSHCluster object from inherited base classes: Cluster with example: obj = SSHCluster(resource_spec)