code: def shuffle_array(self, array):
      shuffled = np.array(array, copy=True)
      np.random.shuffle(shuffled)
      return shuffled
  
imports: import pytest
  import joblib
  import os
  import json
  import numpy
  import pandas
  from itertools import product
  import matplotlib
  from abc import ABC, abstractmethod
  import warnings
label_desc: Use image node_id 3 for calling the DummyDataGenerator obj's underlying member method code with example usage: obj.shuffle_array(array) and returns: shuffled