code: def id_diff(self):
      localctx = AutolevParser.Id_diffContext(
          self, self._ctx, self.state
      )
      self.enterRule(localctx, 40, self.RULE_id_diff)
      self._la = 0  # Token type
      try:
          self.enterOuterAlt(localctx, 1)
          self.state = 299
          self.match(AutolevParser.ID)
          self.state = 301
          self._errHandler.sync(self)
          _la = self._input.LA(1)
          if _la == 11:
              self.state = 300
              self.diff()
  
      except RecognitionException as re:
          localctx.exception = re
          self._errHandler.reportError(self, re)
          self._errHandler.recover(self, re)
      finally:
          self.exitRule()
      return localctx
  
imports: from antlr4 import *
  from io import StringIO
  import sys
label_desc: Use image node_id 22 for calling the AutolevParser obj's underlying member method code with example usage: obj.id_diff() and returns: localctx