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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 moveto(self, x, y, scale=1):
 """Move and scale element. Parameters x, y : float displacement in x and y coordinates in user units ('px'). scale : float scaling factor. To scale down scale < 1, scale up scale > 1. For no scaling scale = 1. """

        self.root.set("transform", "translate(%s, %s) scale(%s) %s" %
                      (x, y, scale, self.root.get("transform") or ''))