code: def test_signed_hyper_parabolic_transform_vector(self):
      signed_hyperbolic = self.variant(transforms.signed_hyperbolic)
      signed_parabolic = self.variant(transforms.signed_parabolic)
      # Test inverse.
      np.testing.assert_allclose(
          signed_parabolic(signed_hyperbolic(self.xs)),
          self.xs,
          atol=1e-3,
      )
  
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 9 for calling the TransformsTest obj's underlying member method code with example usage: obj.test_signed_hyper_parabolic_transform_vector() without return types