code: def close(self):
      if not self.closed:
          self._stream_reqs = {}
          self._clisrv = None
          utils.debug_log("ZmqMgmtStream is closed", verbosity=1)
      super(ZmqMgmtStream, self).close()
  
file_path: tensorwatch/tensorwatch/zmq_mgmt_stream.py
imports: from typing import Any
  from .zmq_stream import ZmqStream
  from .lv_types import PublisherTopics, ServerMgmtMsg, StreamCreateRequest
  from .zmq_wrapper import ZmqWrapper
  from .lv_types import CliSrvReqTypes, ClientServerRequest
  from .None import utils
label_desc: Use image node_id 6 for calling the ZmqMgmtStream obj's underlying member method code with example usage: obj.close() without return types