code: def close_brackets(self):
      if not self.in_brackets:
          raise ValueError("Unmatched closing brackets")
      self.__in_brackets = False
      self.__any_tokens = True
      self.mark_tokens(1, TOK_BRACKET_EXP)
      self.matching_braces[self.position] = self.__bracket_start
      self.position += 1
      return self.__bracket_start
  
imports: import re
  import wx
  import wx.stc
label_desc: Use image node_id 8 for calling the RegexpState obj's underlying member method code with example usage: obj.close_brackets() and returns: self