code: def test_call(self):
      logits = self._ranker(
          inputs=self._features, mask=[[True, False], [True, True]]
      )
      self.assertAllEqual([2, 2], logits.get_shape().as_list())
      self.assertAllEqual(logits.numpy(), [[1.0, 0.0], [1.0, 1.0]])
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import tensorflow.compat.v2
  from tensorflow_ranking.python.keras import network
label_desc: Use image node_id 2 for calling the UnivariateRankingNetworkTest obj's underlying member method code with example usage: obj.test_call() without return types