code: def test__get_options_string(test_enum, expected_str):
      assert _get_options_string(test_enum) == expected_str
  
imports: from enum import Enum
  import pytest
  from alibi.utils import _get_options_string
label_desc: Use image node_id 1 for calling a global function with example usage: test__get_options_string(test_enum, expected_str) without return types