class_docstr: Simple socket server with length-prefixed pickle messages.
  
  Args:
    :count: expected number of nodes in the cluster.
docstr: Returns the value of TFOS_SERVER_HOST environment variable (if set), otherwise defaults to current host/IP.
docstr_tok: ["Returns","the","value","of","TFOS_SERVER_HOST","environment","variable","(","if","set",")",",","otherwise","defaults","to","current","host\/IP","."]
code: def get_server_ip(self):
      """Returns the value of TFOS_SERVER_HOST environment variable (if set), otherwise defaults to current host/IP."""
      return os.getenv(TFOS_SERVER_HOST, util.get_ip_address())
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import nested_scopes
  from __future__ import print_function
  import logging
  import os
  import pickle
  import select
  import socket
  import struct
  import sys
  import threading
  import time
  from .None import util
label_desc: Use image node_id 5 for calling the Server obj's underlying member method code with example usage: obj.get_server_ip() and returns: os