code: def open_pager(self):
          
          n_rows, n_cols = self.term.stdscr.getmaxyx()
  
          if self.config['max_pager_cols'] is not None:
              n_cols = min(n_cols, self.config['max_pager_cols'])
  
          data = self.get_selected_item()
          if data['type'] == 'Submission':
              text = '\n\n'.join((data['permalink'], data['text']))
              self.term.open_pager(text, wrap=n_cols)
          elif data['type'] == 'Comment':
              text = '\n\n'.join((data['permalink'], data['body']))
              self.term.open_pager(text, wrap=n_cols)
          else:
              self.term.flash()
docs: Open the selected item with the system's pager