input: Write a function to rewrite the given JavaScript code in Python. The function should take in a list of numbers, multiply each number by 2, and then print each result. The function should return None.
  
  assert rewrite_js_to_python([1, 2, 3, 4, 5]) == None
  assert rewrite_js_to_python([10, 20, 30, 40, 50]) == None
output: def rewrite_js_to_python(numbers):
      for num in numbers:
          print(num * 2)
      return None