code: def __init__(self, elements=()):
      self._list = []
      self._set = set()
      self.update(elements)
  
imports: from __future__ import absolute_import
  import os
  import sys
  import re
  import io
  import codecs
  import shutil
  import tempfile
  from contextlib import contextmanager
label_desc: Use image node_id 1 to create a new OrderedSet object from inherited base classes: object with example: obj = OrderedSet(elements)