code: def test_activation_basics(self):
      self.run_layer_test(
          layers.Activation,
          init_kwargs={
              "activation": "relu",
          },
          input_shape=(2, 3),
          expected_output_shape=(2, 3),
          expected_num_trainable_weights=0,
          expected_num_non_trainable_weights=0,
          expected_num_seed_generators=0,
          expected_num_losses=0,
          supports_masking=True,
      )
      self.run_layer_test(
          layers.Activation,
          init_kwargs={
              "activation": activations.gelu,
          },
          input_shape=(2, 2),
          expected_output_shape=(2, 2),
          expected_num_trainable_weights=0,
          expected_num_non_trainable_weights=0,
          expected_num_seed_generators=0,
          expected_num_losses=0,
          supports_masking=True,
      )
  
imports: import pytest
  from keras import activations
  from keras import layers
  from keras import testing
label_desc: Use image node_id 1 for calling the ActivationTest obj's underlying member method code with example usage: obj.test_activation_basics() without return types