class_docstr: SocketServer
  
  A basic Python socket server
class_docstr_tok: ["SocketServer","A","basic","Python","socket","server"]
code: def start_server(self):
      sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
      sock.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)
      master_url = determine_master(port=self.port).split(":")[0]
      host = master_url.split(":")[0]
      sock.bind((host, self.port))
      sock.listen(5)
      self.socket = sock
      self.runs = True
      self.run()
  
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 4 for calling the SocketServer obj's underlying member method code with example usage: obj.start_server() without return types