docstr: Check that noisy and noisless actions match for zero stddev.
docstr_tok: ["Check","that","noisy","and","noisless","actions","match","for","zero","stddev","."]
code: def test_deterministic(self):
      """Check that noisy and noisless actions match for zero stddev."""
      add_noise = self.variant(exploration.add_dirichlet_noise)
  
      # Test that noisy and noisless actions match for zero Dirichlet noise
      for _ in range(10):
          prior = np.random.normal(
              0.0, 1.0, (self._batch_size, self._num_actions)
          )
  
          # Test output.
          self._rng_key, key = jax.random.split(self._rng_key)
          noisy_prior = add_noise(
              key, prior, dirichlet_alpha=0.3, dirichlet_fraction=0.0
          )
          np.testing.assert_allclose(prior, noisy_prior)
  
imports: from absl.testing import absltest
  from absl.testing import parameterized
  import chex
  import jax
  import numpy
  from rlax._src import exploration
label_desc: Use image node_id 2 for calling the DirichletNoiseTest obj's underlying member method code with example usage: obj.test_deterministic() without return types