code: def mp_sempred(self, localctx: MpContext, predIndex: int):
      if predIndex == 2:
          return self.precpred(self._ctx, 2)
  
imports: from antlr4 import *
  from io import StringIO
  import sys
label_desc: Use image node_id 46 for calling the LaTeXParser obj's underlying member method code with example usage: obj.mp_sempred(localctx, predIndex) and returns: self