docstr: Retrieve the results of the tasks
docstr_tok: ["Retrieve","the","results","of","the","tasks"]
code: def __call__(self):
      """Retrieve the results of the tasks"""
      self.wait()
      if not self.unpickled:
          self.__unpickle()
      return self._value
  
imports: from ppft import _Task
  from ppft import Server
  import time
  import dill
  import threading
label_desc: Use image node_id 5 for calling the MapResult obj's underlying member method code with example usage: obj.__call__() and returns: self