Subclasses may override this method.

def _pointInside(self, point):
        """
        Subclasses may override this method.
        """
        from fontTools.pens.pointInsidePen import PointInsidePen
        pen = PointInsidePen(glyphSet=self.layer, testPoint=point, evenOdd=False)
        self.draw(pen)
        return pen.getResult()