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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 unmount(self):
 """Calls all unmount methods in the correct order."""


        self.unmount_bindmounts()
        self.unmount_mounts()
        self.unmount_volume_groups()
        self.unmount_loopbacks()
        self.unmount_base_images()
        self.clean_dirs()