class_docstr: Margin displaying a scrollbar.
  
  :param display_arrows: Display scroll up/down arrows.
code: def get_width(self, cli, ui_content):
      return 1
  
imports: from __future__ import unicode_literals
  from abc import ABCMeta, abstractmethod
  from six import with_metaclass
  from six.moves import range
  from prompt_toolkit.filters import to_cli_filter
  from prompt_toolkit.token import Token
  from prompt_toolkit.utils import get_cwidth
  from .utils import token_list_to_text
label_desc: Use image node_id 2 for calling the ScrollbarMargin obj's underlying member method code with example usage: obj.get_width(cli, ui_content) and returns: int