docstr: Returns the command's result if terminated, or None.
  :return: terminated flag and exit code
docstr_tok: ["Returns","the","command","'s","result","if","terminated",",","or","None",".",":","return",":","terminated","flag","and","exit","code"]
code: def command_result(self):
      """
      Returns the command's result if terminated, or None.
      :return: terminated flag and exit code
      """
      resp = self._send(CommandExitCodeRequest())
      return resp.terminated, resp.exit_code
  
imports: import abc
  import threading
  from horovod.runner.common import util
  from horovod.runner.common.util import network, safe_shell_exec, timeout
  from horovod.runner.util.streams import Pipe
  from horovod.runner.util.threads import in_thread
label_desc: Use image node_id 7 for calling the BasicTaskClient obj's underlying member method code with example usage: obj.command_result() and returns: resp,  resp