code: def setUp(self):
      super().setUp()
      self.x = 0.5
      self.xs = jnp.array([-2, -1, -0.5, 0, 0.5, 1, 2])
  
imports: import functools
  from absl.testing import absltest
  from absl.testing import parameterized
  import chex
  import jax
  import jax.numpy
  import numpy
  from rlax._src import transforms
label_desc: Use image node_id 1 for calling the TransformsTest obj's underlying member method code with example usage: obj.setUp() without return types