input: Write a python function to simulate the rolling of two six-sided dice and returning their values.
  assert roll_dice_pair() in [(1, 1), (1, 2), (1, 3), (1, 4), (1, 5), (1, 6), (2, 1), (2, 2), (2, 3), (2, 4), (2, 5), (2, 6), (3, 1), (3, 2), (3, 3), (3, 4), (3, 5), (3, 6), (4, 1), (4, 2), (4, 3), (4, 4), (4, 5), (4, 6), (5, 1), (5, 2), (5, 3), (5, 4), (5, 5), (5, 6), (6, 1), (6, 2), (6, 3), (6, 4), (6, 5), (6, 6)]
  assert roll_dice_pair() != (0, 0)
  assert roll_dice_pair() != (7, 7)
output: import random
  
  def roll_dice_pair():
      return (random.randint(1, 6), random.randint(1, 6))