code: def setUp(self):
      super().setUp()
      self.data = jnp.array(
          [[1, 2, 3, 4, 5, 6], [-1, -2, -3, -4, -5, -6]]
      )
      self.replacement = self.data * 10
      self.mask = jnp.array([0, 1])
  
file_path: rlax/rlax/_src/base_test.py
imports: from absl.testing import absltest
  from absl.testing import parameterized
  import jax
  import jax.numpy
  import numpy
  from rlax._src import base
label_desc: Use image node_id 1 for calling the ReplaceTest obj's underlying member method code with example usage: obj.setUp() without return types