input: Write a function to iterate over a list of numbers and print only the even numbers. The function should take a list of integers as input and print each even number from the list. If there are no even numbers in the list, the function should not print anything.
  
  def print_even_numbers(my_list):
      for num in my_list:
          if num % 2 == 0:
              print(num)
  
  assert print_even_numbers([1, 2, 3, 4, 5, 6, 7, 8, 9, 10])==None
  assert print_even_numbers([1, 3, 5, 7, 9])==None
  assert print_even_numbers([2, 4, 6, 8, 10])==None
  assert print_even_numbers([])==None
output: def print_even_numbers(my_list):
      for num in my_list:
          if num % 2 == 0:
              print(num)