code: def test_env_var_list(yaml_path):
      """Test that env_var lists are correctly handled"""
      config = Configuration()
      config.add_option(
          "test",
          option_type=list,
          default=["voici"],
          env_var="TOP_SECRET_LIST",
      )
      assert config.test == ["voici"]
  
      os.environ["TOP_SECRET_LIST"] = "voila:voici:voila"
      assert config.test == ["voila", "voici", "voila"]
  
imports: import argparse
  import logging
  import os
  import pytest
  import yaml
  from orion.core.io.config import Configuration, ConfigurationError
label_desc: Use image node_id 21 for calling a global function with example usage: test_env_var_list(yaml_path) without return types