code: def inn(self) -> str:
          
          def control_sum(nums: list, t: str) -> int:
              digits = {
                  'n2': [7, 2, 4, 10, 3, 5, 9, 4, 6, 8],
                  'n1': [3, 7, 2, 4, 10, 3, 5, 9, 4, 6, 8],
              }
              number = 0
              length = digits[t]
              for i in range(0, len(length)):
                  number += nums[i] * length[i]
              return number % 11 % 10
  
          numbers = []
          for x in range(0, 10):
              numbers.append(self.random.randint(1 if x == 0 else 0, 9))
  
          n2 = control_sum(numbers, 'n2')
          numbers.append(n2)
          n1 = control_sum(numbers, 'n1')
          numbers.append(n1)
          return ''.join([str(x) for x in numbers])
docs: Generate random, but valid ``INN``.
  
          :return: INN.