input: from typing import Tuple
  
  def double_add(num1: int, num2: int) -> int:
      """Adds two numbers and then doubles the result.
      >>> double_add(1, 2)
      6
      >>> double_add(3, 4)
      14
      """
      return (num1 + num2) * 2
output:     return (num1 + num2) * 2