code: def multiple(layer: int, limit: int) -> Set[str]:
  	
  	return {str(x).zfill(2) for x in [2**x for x in range(limit)] if x % 2**(layer - 1) == 0}
docs: Returns a set of strings to be used as Slots with Pabianas default Clock.
  
  	Args:
  		layer: The layer in the hierarchy this Area is placed in.
  			Technically, the number specifies how many of the Clocks signals are relevant to the Area.
  			Between 1 and limit.
  		limit: The number of layers of the hierarchy.