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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def px_to_pt(self, px):
 """Convert a size in pxel to a size in points."""

        if px < 200:
            pt = self.PX_TO_PT[px]
        else:
            pt = int(floor((px - 1.21) / 1.332))

        return pt