input: 
  def get_squared_values(numbers: List[int]) -> List[int]:
      """
      Returns a list comprehension containing the squared values of the input list.
      
      >>> get_squared_values([1, 2, 3, 5, 8, 13])
      [1, 4, 9, 25, 64, 169]
      """
  
output:     return [x**2 for x in numbers]