input: from typing import List, Dict
  
  def create_square_dictionary(numbers: List[int]) -> Dict[int, int]:
      """ Create a dictionary which contains a data structure in the form of [x:x^2] 
      where x is the key and x^2 is the value.
      >>> create_square_dictionary([1, 2, 3, 4, 5])
      {1: 1, 2: 4, 3: 9, 4: 16, 5: 25}
      """
      return {num: num**2 for num in numbers}
output:     return {num: num**2 for num in numbers}