def setSyntax(self, syntax):
        """Choose smart indentation algorithm according to syntax"""
        self._smartIndenter = self._chooseSmartIndenter(syntax)
def test_supertype(self):
        self.assert_(isinstance(None, NullType))
        self.assert_(isinstance(Optional('a'), NullType))
        self.assert_(isinstance(NotPassed, NotPassedType))
        self.assert_(isinstance(NotPassed, NullType))