code: def check_none(
      val: Optional[Any], reason: Optional[str] = None
  ) -> None:
      return is_none(val, reason)
  
imports: from typing import Any, Container, Optional, Sized, Tuple, Type, Union
label_desc: Use image node_id 6 for calling a global function with example usage: check_none(val, reason) and returns: is_none