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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 sync(self):
 """ Synchronise the settings. This means that the pixel start values are shifted downwards so that they are synchronised with a full-frame binned version. This does nothing if the binning factors == 1. """


        # needs some mods for ultracam ??
        xbin = self.xbin.value()
        ybin = self.ybin.value()
        n = 0
        for xsl, xsr, ys, nx, ny in self:
            if xbin > 1:
                xsl = xbin*((xsl-1)//xbin)+1
                self.xsl[n].set(xsl)
                xsr = xbin*((xsr-1025)//xbin)+1025
                self.xsr[n].set(xsr)

            if ybin > 1:
                ys = ybin*((ys-1)//ybin)+1
                self.ys[n].set(ys)

            n += 1
        g = get_root(self).globals
        self.sbutt.config(bg=g.COL['main'])
        self.sbutt.config(state='disable')