class_docstr: Tracker that tracks the resources.
code: def close(self, conn):
      self._connections.remove(conn)
      if "key" in conn._info:
          for value in conn.put_values:
              _, _, _, key = value
              rpc_key, _ = base.split_random_key(key)
              self._scheduler_map[rpc_key].remove(value)
  
imports: import asyncio
  import heapq
  import logging
  import socket
  import threading
  import errno
  import struct
  import json
  from tvm.contrib.popen_pool import PopenWorker
  from .._ffi.base import py_str
  from .None import base
  from .base import RPC_TRACKER_MAGIC, TrackerCode
label_desc: Use image node_id 6 for calling the TrackerServerHandler obj's underlying member method code with example usage: obj.close(conn) without return types