code: def test_utility_pretty_repr(self, x, pretty_str):
      self.assertEqual(pretty_repr(x), pretty_str)
  
file_path: flax/tests/core/core_frozen_dict_test.py
imports: import jax
  from absl.testing import absltest, parameterized
  from flax.core import FrozenDict, copy, freeze, pop, pretty_repr, unfreeze
label_desc: Use image node_id 13 for calling the FrozenDictTest obj's underlying member method code with example usage: obj.test_utility_pretty_repr(x, pretty_str) without return types