1  from typing import List, Tuple
   2  
   3  def newer(source: str, target: str) -> bool: ...
   4  def newer_pairwise(sources: List[str], targets: List[str]) -> List[Tuple[str, str]]: ...
   5  def newer_group(sources: List[str], target: str, missing: str = ...) -> bool: ...
   6