code: def onecmd(self, cmd):
      if cmd == "EOF":
          sys.exit(0)
      log.info(f"Sending command: {cmd}")
      self.requester.send_string(cmd)
      response = self.requester.recv_string()
      log.info(f"Received response: {response}")
  
file_path: ffmpeg/tools/zmqshell.py
imports: import argparse
  import cmd
  import logging
  import sys
  import zmq
label_desc: Use image node_id 2 for calling the LavfiCmd obj's underlying member method code with example usage: obj.onecmd(cmd) without return types