code: def patronymic(self, gender: Gender = None) -> str:
          
          gender = self._validate_enum(gender, Gender)
          patronymics = self._data['patronymic'][gender]
          return self.random.choice(patronymics)
docs: Generate random patronymic name.
  
          :param gender: Gender of person.
          :return: Patronymic name.
  
          :Example:
              Алексеевна.