code: def add(self, *args):
          
          row = []
          for index, button in enumerate(args, start=1):
              row.append(button)
              if index % self.row_width == 0:
                  self.inline_keyboard.append(row)
                  row = []
          if len(row) > 0:
              self.inline_keyboard.append(row)
          return self
docs: Add buttons
  
          :param args:
          :return: self
          :rtype: :obj:`types.InlineKeyboardMarkup`