class_docstr: Margin displaying a scrollbar.
  
  :param display_arrows: Display scroll up/down arrows.
code: def __init__(self, display_arrows=False):
      self.display_arrows = to_cli_filter(display_arrows)
  
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 1 to create a new ScrollbarMargin object from inherited base classes: Margin with example: obj = ScrollbarMargin(display_arrows)