class_docstr: Thread-safe store for node reservations.
  
  Args:
    :required: expected number of nodes in the cluster.
docstr: Get the list of current reservations.
docstr_tok: ["Get","the","list","of","current","reservations","."]
code: def get(self):
      """Get the list of current reservations."""
      with self.lock:
          return self.reservations
  
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 4 for calling the Reservations obj's underlying member method code with example usage: obj.get() and returns: self