code: def __init__(self):
      self.flags = 0
      self.groupdict = {}
      self.groupwidths = [None]  # group 0
      self.lookbehindgroups = None
      self.grouprefpos = {}
  
imports: from ._constants import *
label_desc: Use image node_id 1 to create a new State object  with example: obj = State()