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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:
 async def artwork_save(self):
 """Download artwork and save it to artwork.png."""

        artwork = await self.atv.metadata.artwork()
        if artwork is not None:
            with open('artwork.png', 'wb') as file:
                file.write(artwork)
        else:
            print('No artwork is currently available.')
            return 1
        return 0