code: def test_array_values(self):
      d = {"a": [1, 2, 3], "b": {"c": [4, 5]}}
      self._assert_keys_values(
          tff.utils.iterate_nested(d),
          expected_keys=["a", "b_c"],
          expected_values=[[1, 2, 3], [4, 5]],
      )
  
file_path: tf-quant-finance/tf_quant_finance/utils/tf_functions_test.py
imports: from typing import Dict
  import dataclasses
  import tensorflow.compat.v2
  import tf_quant_finance
  from tensorflow.python.framework import test_util
label_desc: Use image node_id 4 for calling the TfFunctionsTest obj's underlying member method code with example usage: obj.test_array_values() without return types