code: def test_parallel_in_out(self, same_inputs):
      test_utils.stub_out_pmap(batching, 2)
      rng = random.PRNGKey(0)
      input_key1, input_key2 = random.split(rng, 2)
  
      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))
  
      N = WIDTH
  
      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.
  
      readin = net(N)
      readout = net(1)
  
      K_readin_fn = jit(readin[2])
      K_readout_fn = jit(partial(readout[2], get="nngp"))
  
      batch_K_readin_fn = batching.batch(K_readin_fn, 2)
      batch_K_readout_fn = batching.batch(K_readout_fn, 2)
  
      test_utils.assert_close_matrices(
          self,
          K_readout_fn(K_readin_fn(x1, x2)),
          batch_K_readout_fn(batch_K_readin_fn(x1, x2)),
          RTOL,
      )
  
      # Check Both.
      K_readin_fn = jit(readin[2])
      K_readout_fn = jit(partial(readout[2], get=("nngp", "ntk")))
  
      batch_K_readin_fn = batching.batch(K_readin_fn, 2)
      batch_K_readout_fn = batching.batch(K_readout_fn, 2)
  
      test_utils.assert_close_matrices(
          self,
          K_readout_fn(K_readin_fn(x1, x2)),
          batch_K_readout_fn(batch_K_readin_fn(x1, x2)),
          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 11 for calling the BatchTest obj's underlying member method code with example usage: obj.test_parallel_in_out(same_inputs) and returns: stax