input: 
  from typing import List
  
  def rewrite_in_python(arr: List[int]) -> None:
      """ Rewrite the given array processing in JavaScript to Python.
      >>> rewrite_in_python([1, 2, 3, 4, 5])
      2
      4
      6
      8
      10
      """
  
output:     for i in range(len(arr)):
          print(arr[i] * 2)