code: def test_connection(self):
      data = jnp.zeros([2, 3, 4, 5])
      normalize = lambda a: layer_norm.LayerNorm(
          a, True, True, param_axis=-1
      )(data)
  
      normalize(0)
      normalize(1)
      normalize(2)
      normalize(3)
      normalize(slice(1, None))
      normalize(slice(2, None))
      normalize(slice(1, -1))
  
imports: import functools
  import itertools
  from absl.testing import absltest
  from absl.testing import parameterized
  from haiku._src import initializers
  from haiku._src import layer_norm
  from haiku._src import test_utils
  from haiku._src import transform
  import jax
  import jax.numpy
  import numpy
label_desc: Use image node_id 1 for calling the LayerNormTest obj's underlying member method code with example usage: obj.test_connection() without return types