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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 GetCoinAssets(self):
 """ Get asset ids of all coins present in the wallet. Returns: list: of UInt256 asset id's. """

        assets = set()
        for coin in self.GetCoins():
            assets.add(coin.Output.AssetId)
        return list(assets)