code: def is_null(value: Any) -> bool:
      """
      Check if value is NaN or None
      """
      # pylint: disable=comparison-with-itself
      return value != value or value is None
  
file_path: pyproj/pyproj/utils.py
imports: import json
  from array import array
  from enum import Enum, auto
  from typing import Any
label_desc: Use image node_id 1 for calling a global function with example usage: is_null(value) and returns: unknown