code: def font_timer_event(self):
      newtextfont = self.text["font"]
      if self.label and newtextfont != self.textfont:
          self.textfont = newtextfont
          self.label["font"] = self.textfont
      self.text.after(FONTUPDATEINTERVAL, self.font_timer_event)
  
file_path: catboost/contrib/tools/python/src/Lib/idlelib/CodeContext.py
imports: import Tkinter
  from Tkconstants import TOP, LEFT, X, W, SUNKEN
  import re
  from sys import maxint
  from idlelib.configHandler import idleConf
label_desc: Use image node_id 7 for calling the CodeContext obj's underlying member method code with example usage: obj.font_timer_event() without return types