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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 erase(self):
 """ Erase the contents of the cursor's current position without moving the cursor's position. """

        bounds = (self._cx, self._cy, self._cx + self._cw, self._cy + self._ch)
        self._canvas.rectangle(bounds, fill=self._bgcolor)