code: def test_call_no_mask(self):
      logits = self.network(inputs=self.features)
      self.assertAllEqual([2, 2], logits.get_shape().as_list())
  
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 losses
  from tensorflow_ranking.python.keras import metrics
  from tensorflow_ranking.python.keras import model
  from tensorflow_ranking.python.keras.canned import gam
label_desc: Use image node_id 4 for calling the GAMRankingNetworkTest obj's underlying member method code with example usage: obj.test_call_no_mask() without return types