code: def __increment_block(self):
          
          self.__current_block += 1
          if self.__current_block >= len(self.__level_blocks):
              self.__current_block = 0
              self.__current_level += 1
  
              if self.__current_level < self.__directory.get_height():
                  self.__level_blocks = self.__directory.get_level(self.__current_level)
docs: !
          @brief Increment BANG block safely by updating block index, level and level block.