code: def test_sequential(self):
      seq = basic.Sequential([basic.Linear(2), jax.nn.relu])
      out = seq(jnp.zeros([3, 2]))
      self.assertEqual(out.shape, (3, 2))
  
imports: from absl.testing import absltest
  from absl.testing import parameterized
  from haiku._src import base
  from haiku._src import basic
  from haiku._src import test_utils
  from haiku._src import transform
  import jax
  from jax import random
  import jax.numpy
  import numpy
label_desc: Use image node_id 5 for calling the BasicTest obj's underlying member method code with example usage: obj.test_sequential() without return types