code: def test_should_update(self):
      selector = selectors.construct_representation_selector(
          ["a", "b", "c"], "greedy", sample_freq=2, update_freq=2
      )
      selector.update(1, [0.5, 0.3, 0.6])
      self.assertFalse(selector.should_update(2))
      self.assertTrue(selector.should_update(3))
  
file_path: neural-structured-learning/research/multi_representation_adversary/multi_representation_adversary/selectors_test.py
imports: import gin
  from multi_representation_adversary import selectors
  import tensorflow.compat.v2
label_desc: Use image node_id 4 for calling the SelectorsTest obj's underlying member method code with example usage: obj.test_should_update() without return types