code: def test_find_keys(
      self,
      d: dict[str, bool],
      predicate: Callable[[utils.V], bool],
      expected: Sequence[str],
  ):
      found = utils.find_keys(d, predicate)
      self.assertEqual(expected, found)
  
imports: from collections.abc import Callable, Sequence
  import copy
  from typing import Any, Optional, TypeVar, Union
  from absl.testing import absltest
  from absl.testing import parameterized
  from lit_nlp.api import types
  from lit_nlp.lib import utils
  import numpy
label_desc: Use image node_id 3 for calling the UtilsTest obj's underlying member method code with example usage: obj.test_find_keys(d, predicate, expected) without return types