code: def fuzzy_nand(args):
      """Return False if all args are True, True if they are all False,
      else None."""
      return fuzzy_not(fuzzy_and(args))
  
imports: from __future__ import annotations
  from typing import Optional
label_desc: Use image node_id 8 for calling a global function with example usage: fuzzy_nand(args) and returns: fuzzy_not