code: def test_parallel_in_out_empirical(self, same_inputs):
      test_utils.stub_out_pmap(batching, 2)
      rng = random.PRNGKey(0)
      input_key1, input_key2, net_key = random.split(rng, 3)
  
      x1_1, x1_2, x1_3 = random.normal(input_key1, (3, 4, 1))
      x1 = (x1_1, (x1_2, x1_3))
  
      if same_inputs:
          x2 = None
      else:
          x2_1, x2_2, x2_3 = random.normal(input_key2, (3, 8, 1))
          x2 = (x2_1, (x2_2, x2_3))
  
      def net(N_out):
          return stax.parallel(
              stax.Dense(N_out),
              stax.parallel(
                  stax.Dense(N_out + 1), stax.Dense(N_out + 2)
              ),
          )
  
      # Check NNGP.
      init_fn, apply_fn, _ = net(WIDTH)
      _, params = init_fn(net_key, ((-1, 1), ((-1, 1), (-1, 1))))
  
      kernel_fn = jit(nt.empirical_nngp_fn(apply_fn))
      batch_kernel_fn = jit(batching.batch(kernel_fn, 2))
  
      test_utils.assert_close_matrices(
          self,
          kernel_fn(x1, x2, params),
          batch_kernel_fn(x1, x2, params),
          RTOL,
      )
  
      # Check NTK.
      init_fn, apply_fn, _ = stax.serial(net(WIDTH), net(1))
      _, params = init_fn(net_key, ((-1, 1), ((-1, 1), (-1, 1))))
  
      kernel_fn = jit(
          nt.empirical_ntk_fn(
              apply_fn,
              implementation=_DEFAULT_TESTING_NTK_IMPLEMENTATION,
          )
      )
      batch_kernel_fn = jit(batching.batch(kernel_fn, 2))
  
      test_utils.assert_close_matrices(
          self,
          kernel_fn(x1, x2, params),
          batch_kernel_fn(x1, x2, params),
          RTOL,
      )
  
imports: from functools import partial
  from absl.testing import absltest
  from jax import jit
  from jax import config
  from jax import random
  import jax.numpy
  from jax.tree_util import tree_map
  import neural_tangents
  from neural_tangents import stax
  from neural_tangents._src import batching
  from neural_tangents._src.empirical import _DEFAULT_TESTING_NTK_IMPLEMENTATION
  from tests import test_utils
label_desc: Use image node_id 12 for calling the BatchTest obj's underlying member method code with example usage: obj.test_parallel_in_out_empirical(same_inputs) and returns: stax