input: def find_largest_number(numbers: List[int]) -> int:
      """Identifies the largest number in the given list.
      >>> find_largest_number([1000, 506, 299, 620, 35])
      1000
      >>> find_largest_number([10, 50, 30, 90, 20])
      90
      """
      
      max_num = 0
      
      for num in numbers:
          if num > max_num:
              max_num = num
      
      return max_num
output:     max_num = numbers[0]
      
      for num in numbers:
          if num > max_num:
              max_num = num
      
      return max_num