code: def one_or_none_set(iterable: Iterable[bool]) -> bool:
      return 0 <= sum(1 for i in iterable if i) <= 1
  
imports: from __future__ import annotations
  from typing import Iterable
label_desc: Use image node_id 2 for calling a global function with example usage: one_or_none_set(iterable) and returns: unknown