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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 photos(self):
 """Copy photos to the destination user."""

        # Reverse because pictures appear in inverse chronological order.
        for photo_info in self.dest_user.profile.photo_infos:
            self.dest_user.photo.delete(photo_info)
        return [self.dest_user.photo.upload_and_confirm(info)
                for info in reversed(self.source_profile.photo_infos)]