code: def open_brackets(self):
      self.__in_brackets = True
      self.__bracket_start = self.position
      self.mark_tokens(1, TOK_BRACKET_EXP)
      self.position += 1
      self.__any_tokens = True
  
imports: import re
  import wx
  import wx.stc
label_desc: Use image node_id 7 for calling the RegexpState obj's underlying member method code with example usage: obj.open_brackets() without return types