code: def test_basic(
      self,
      layer_class,
      init_kwargs={},
      input_shape=(2, 4, 5),
      expected_output_shape=(2, 4, 5),
      **kwargs,
  ):
      self.run_layer_test(
          layer_class,
          init_kwargs=init_kwargs,
          input_shape=[input_shape, input_shape],
          expected_output_shape=expected_output_shape,
          expected_num_trainable_weights=0,
          expected_num_non_trainable_weights=0,
          expected_num_seed_generators=0,
          expected_num_losses=0,
          supports_masking=True,
      )
  
file_path: keras/keras/layers/merging/merging_test.py
imports: import numpy
  import pytest
  from absl.testing import parameterized
  from keras import backend
  from keras import layers
  from keras import models
  from keras import testing
label_desc: Use image node_id 1 for calling the MergingLayersTest obj's underlying member method code with example usage: obj.test_basic(layer_class, init_kwargs, input_shape, expected_output_shape) without return types