input: from typing import Set
  
  def intersection(set1: Set[int], set2: Set[int]) -> Set[int]:
      """ Find the intersection of two given sets of integers.
      >>> intersection({1, 2, 3, 4}, {3, 4, 5, 6})
      {3, 4}
      >>> intersection({10, 20, 30}, {20, 30, 40})
      {20, 30}
      """
output:     return set1 & set2