code: def testGluValue(self):
      val = nn.glu(jnp.array([1.0, 0.0]), axis=0)
      self.assertAllClose(val, jnp.array([0.5]))
  
imports: import collections
  from functools import partial
  import itertools
  import unittest
  from absl.testing import absltest
  from absl.testing import parameterized
  import scipy.stats
  from jax._src import config
  from jax._src import core
  from jax._src import test_util
  from jax._src import ad_checkpoint
  from jax.test_util import check_grads
  from jax import nn
  from jax import random
  import jax
  import jax.numpy
label_desc: Use image node_id 18 for calling the NNFunctionsTest obj's underlying member method code with example usage: obj.testGluValue() without return types