def Tokens(self, _parent=None):
        _context = self.Context(_parent, self._scanner, 'Tokens', [])
        tok = []
        while self._peek('"token"', '"ignore"', 'EOF', '"rule"', context=_context) in ['"token"', '"ignore"']:
            _token = self._peek('"token"', '"ignore"', context=_context)
            if _token == '"token"':
                self._scan('"token"', context=_context)
                ID = self._scan('ID', context=_context)
                self._scan('":"', context=_context)
                Str = self.Str(_context)
                tok.append( (ID,Str) )
            else: # == '"ignore"'
                self._scan('"ignore"', context=_context)
                self._scan('":"', context=_context)
                Str = self.Str(_context)
                ign = ('#ignore',Str)
                if self._peek('STMT', '"token"', '"ignore"', 'EOF', '"rule"', context=_context) is not 'STMT':
                    STMT = self._scan('STMT', context=_context)
                    ign = ign + (STMT[2:-2],)
                tok.append( ign )
        return tok
dataset/ETHPy150Open smurfix/yapps/yapps/grammar.py/ParserDescription.Tokens/operator `==` -> `is not`