code: def __init__(self, elements=None):
      self.values = list()
      self.unique_values = set()
      if elements is not None:
          self.extend(elements)
  
file_path: pythran/pythran/cxxtypes.py
imports: from inspect import isclass
label_desc: Use image node_id 1 to create a new ordered_set object from inherited base classes: object with example: obj = ordered_set(elements)