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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 to_aperture(self):
 """ Return a `~photutils.aperture.RectangularAperture` that represents the bounding box. """


        from .rectangle import RectangularAperture

        xpos = (self.extent[1] + self.extent[0]) / 2.
        ypos = (self.extent[3] + self.extent[2]) / 2.
        xypos = (xpos, ypos)
        h, w = self.shape

        return RectangularAperture(xypos, w=w, h=h, theta=0.)