input: Write a python function to create a dictionary where the keys are numbers from the input list and the values are the squares of those numbers.
  assert create_square_dict([1, 2, 3, 4]) == {1: 1, 2: 4, 3: 9, 4: 16}
  assert create_square_dict([5, 6, 7, 8]) == {5: 25, 6: 36, 7: 49, 8: 64}
  assert create_square_dict([9, 10]) == {9: 81, 10: 100}
output: def create_square_dict(numbers):
      return {num: num ** 2 for num in numbers}