code: def expand_region(tuple_of_s, a, b, start=0, stop=None):
      '''Apply expend_slice on a tuple of slices'''
      return tuple(expand_slice(s, a, b, start=start, stop=stop)
                   for s in tuple_of_sf expand_region(tuple_of_s, a, b, start=0, stop=None):
      '''Apply expend_slice on a tuple of slices'''
      return tuple(expand_slice(s, a, b, start=start, stop=stop)
                   for s in tuple_of_s)
docs: Apply expend_slice on a tuple of slices