code: def test_camelcase_to_snakecase(self, camel, snake):
      self.assertEqual(snake, naming.camelcase_to_snakecase(camel))
  
imports: import os
  from absl.testing import parameterized
  from etils import epath
  import pytest
  from tensorflow_datasets import testing
  from tensorflow_datasets.core import naming
  from tensorflow_datasets.core import splits
label_desc: Use image node_id 1 for calling the NamingTest obj's underlying member method code with example usage: obj.test_camelcase_to_snakecase(camel, snake) without return types