code: def func_normal(self):
      localctx = LaTeXParser.Func_normalContext(
          self, self._ctx, self.state
      )
      self.enterRule(localctx, 62, self.RULE_func_normal)
      self._la = 0  # Token type
      try:
          self.enterOuterAlt(localctx, 1)
          self.state = 369
          _la = self._input.LA(1)
          if not (
              ((_la) & ~0x3F) == 0
              and ((1 << _la) & 576460614864470016) != 0
          ):
              self._errHandler.recoverInline(self)
          else:
              self._errHandler.reportMatch(self)
              self.consume()
      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 33 for calling the LaTeXParser obj's underlying member method code with example usage: obj.func_normal() and returns: localctx