input: Write a function to generate a list of squared values from a given list using list comprehension. If the input list is empty, return an empty list.
  assert get_squared_values([1, 2, 3, 5, 8, 13])==[1, 4, 9, 25, 64, 169]
  assert get_squared_values([2, 4, 6, 8])==[4, 16, 36, 64]
  assert get_squared_values([])==[]
output: def get_squared_values(lst):
      return [x**2 for x in lst]