code: def _check_attributes_match(self, a, b, attributes):
      for attribute in attributes:
          self.assertEqual(getattr(a, attribute), getattr(b, attribute))
  
imports: from absl.testing import absltest
  from absl.testing import parameterized
  import numpy
  from pysc2.lib import actions
  from pysc2.lib import features
  from pysc2.lib import point
  from pysc2.lib import units
  from pysc2.tests import dummy_observation
  from s2clientprotocol import common_pb2
label_desc: Use image node_id 22 for calling the DummyObservationTest obj's underlying member method code with example usage: obj._check_attributes_match(a, b, attributes) without return types