class_docstr: Test public coremltools API visibilities.
code: def test_utils(self):
      expected = [
          "convert_double_to_float_multiarray_type",
          "convert_neural_network_spec_weights_to_fp16",
          "convert_neural_network_weights_to_fp16",
          "evaluate_classifier",
          "evaluate_classifier_with_probabilities",
          "evaluate_regressor",
          "evaluate_transformer",
          "load_spec",
          "rename_feature",
          "save_spec",
      ]
      _check_visible_modules(_get_visible_items(ct.utils), expected)
  
imports: import coremltools
  import pytest
label_desc: Use image node_id 2 for calling the TestApiVisibilities obj's underlying member method code with example usage: obj.test_utils() without return types