input: Write a python function to get the even numbers from a list.
  assert get_even_numbers([1,2,3,4,5,6,7,8,9,10]) == [2, 4, 6, 8, 10]
  assert get_even_numbers([10,15,20,25,30,35]) == [10, 20, 30]
  assert get_even_numbers([11,13,15,17,19]) == []
output: def get_even_numbers(numbers):
      return [num for num in numbers if num % 2 == 0]