class_docstr: SocketServer
  
  A basic Python socket server
class_docstr_tok: ["SocketServer","A","basic","Python","socket","server"]
code: def stop_server(self):
      self.runs = False
      if self.socket:
          for thread in self.connections:
              thread.join()
              del thread
          self.socket.close()
          sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
          try:
              host = determine_master(port=self.port).split(":")[0]
              sock.connect((host, self.port))
              sock.close()
          except Exception:
              pass
      self.socket = None
      self.connections = []
  
imports: import abc
  import pickle
  import socket
  from threading import Thread
  from flask import Flask, request
  from multiprocessing import Process
  from tensorflow.keras.models import Model
  from elephas.utils.sockets import determine_master
  from elephas.utils.sockets import receive, send
  from elephas.utils.serialization import dict_to_model
  from elephas.utils.rwlock import RWLock
  from elephas.utils.notebook_utils import is_running_in_notebook
  from elephas.utils import subtract_params
label_desc: Use image node_id 5 for calling the SocketServer obj's underlying member method code with example usage: obj.stop_server() without return types