code: def run_command(self, command, env):
      self._send(RunCommandRequest(command, env))
  
imports: import threading
  import time
  from bluefog.run.horovodrun.common.util import network
  from bluefog.run.horovodrun.common.util import safe_shell_exec
label_desc: Use image node_id 2 for calling the BasicTaskClient obj's underlying member method code with example usage: obj.run_command(command, env) without return types