input: def add_and_find_min(int_list: IntList) -> int:
      """ Adds an integer value to the given IntList and then finds the minimum value in it.
      >>> add_and_find_min(IntList().add_value(5).add_value(3).add_value(10))
      10
      >>> add_and_find_min(IntList().add_value(-5).add_value(0).add_value(5))
      5
      """
output:     int_list.add_value(10)
      return min(int_list.values)