class_docstr: Simple socket server with length-prefixed pickle messages.
  
  Args:
    :count: expected number of nodes in the cluster.
code: def __init__(self, count):
      assert (
          count > 0
      ), "Expected number of reservations should be greater than zero"
      self.reservations = Reservations(count)
  
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 1 to create a new Server object from inherited base classes: MessageSocket with example: obj = Server(count)