code: def parse_and_validate_container(container: List[str]) -> List[str]:
      """Parses and validates a user-provided 'container' option.
  
      This is passed through without validation (for now).
      """
      assert container is not None
      return container
  
file_path: ray/python/ray/_private/runtime_env/validation.py
imports: import logging
  from pathlib import Path
  import sys
  from typing import Dict, List, Optional, Union
  from collections import OrderedDict
  import yaml
label_desc: Use image node_id 6 for calling a global function with example usage: parse_and_validate_container(container) and returns: container