input: from typing import List
  
  def generate_factorial(numbers: List[int]) -> List[int]:
      """
      Generate the factorial for each integer in the given list and return a list of these factorials.
      
      >>> generate_factorial([1, 2, 3, 4])
      [1, 2, 6, 24]
      >>> generate_factorial([0, 5, 7, 9])
      [1, 120, 5040, 362880]
      """
      def factorial(num: int) -> int:
          if num == 0:
              return 1
          else:
              return num * factorial(num - 1)
      
      return [factorial(num) for num in numbers]
output:     def factorial(num: int) -> int:
          if num == 0:
              return 1
          else:
              return num * factorial(num - 1)
      
      return [factorial(num) for num in numbers]