code: def setUpClass(cls):
      cls.xy_invocations = []
      cls.yx_invocations = []
  
file_path: catalyst/tests/test_testing.py
imports: from itertools import product
  from unittest import TestCase
  from numpy import array, empty
  from catalyst.testing import check_arrays, make_alternating_boolean_array, make_cascading_boolean_array, parameter_space
  from catalyst.utils.numpy_utils import bool_dtype
label_desc: Use image node_id 1 for calling the TestParameterSpace obj's underlying member method code with example usage: obj.setUpClass(cls) without return types