docs: def siret(self, max_sequential_digits=2):
          """
          Generates a siret number (14 digits).
          It is in fact the result of the concatenation of a siren number (9 digits),
          a sequential number (4 digits) and a control number (1 digit) concatenation.
          If $max_sequential_digits is invalid, it is set to 2.
          :param max_sequential_digits The maximum number of digits for the sequential number (> 0 && <= 4).
          """
          if max_sequential_digits > 4 or max_sequential_digits <= 0:
              max_sequential_digits = 2
  
          sequential_number = str(self.random_number(
              max_sequential_digits)).zfill(4)
          return self.numerify(self.siren() + ' ' + sequential_number + '#')