code: def ask(self):
      solutions = self.es.ask()
      return [self.__unpack_solution(s) for s in solutions]
  
imports: import cma
  import random
  import copy
  import pickle
  import os
  import pprint
  import time
  import six
  import numpy
  from opt_util import EPSILON
label_desc: Use image node_id 6 for calling the Optimizer obj's underlying member method code with example usage: obj.ask() and returns: unknown