input: from typing import List
  
  def find_max_element(numbers: List[int]) -> int:
      """
      Given a list of numbers, find the maximum element.
      >>> find_max_element([1, 43, 78, 3, 92, 42])
      92
      >>> find_max_element([5, 10, 15, 20, 25, 100])
      100
      """
output:     if not numbers:
          return None
      max_element = numbers[0]
      for num in numbers:
          if num > max_element:
              max_element = num
      return max_element