code: def test_output(self):
      (
          init_dict,
          inputs_dict,
      ) = self.prepare_init_args_and_inputs_for_common()
  
      model = self.model_class(**init_dict)
      variables = model.init(
          inputs_dict["prng_key"], inputs_dict["sample"]
      )
      jax.lax.stop_gradient(variables)
  
      output = model.apply(variables, inputs_dict["sample"])
  
      if isinstance(output, dict):
          output = output.sample
  
      self.assertIsNotNone(output)
      expected_shape = inputs_dict["sample"].shape
      self.assertEqual(
          output.shape,
          expected_shape,
          "Input and output shapes do not match",
      )
  
imports: import inspect
  from diffusers.utils import is_flax_available
  from diffusers.utils.testing_utils import require_flax
label_desc: Use image node_id 1 for calling the FlaxModelTesterMixin obj's underlying member method code with example usage: obj.test_output() without return types