How to use the bitbox02.bitbox02.btc.BTCPubRequest.UPUB function in bitbox02

self.fail_if_not_initialized()

        xpub_keypath = bip32.convert_bip32_path_to_list_of_uint32(bip32_path)
        coin_network = self.coin_network_from_electrum_network()

        if xtype == "p2wpkh":
            if coin_network == bitbox02.btc.BTC:
                out_type = bitbox02.btc.BTCPubRequest.ZPUB
            else:
                out_type = bitbox02.btc.BTCPubRequest.VPUB
        elif xtype == "p2wpkh-p2sh":
            if coin_network == bitbox02.btc.BTC:
                out_type = bitbox02.btc.BTCPubRequest.YPUB
            else:
                out_type = bitbox02.btc.BTCPubRequest.UPUB
        elif xtype == "p2wsh":
            if coin_network == bitbox02.btc.BTC:
                out_type = bitbox02.btc.BTCPubRequest.CAPITAL_ZPUB
            else:
                out_type = bitbox02.btc.BTCPubRequest.CAPITAL_VPUB
        # The other legacy types are not supported
        else:
            raise Exception("invalid xtype:{}".format(xtype))

        return self.bitbox02_device.btc_xpub(
            keypath=xpub_keypath,
            xpub_type=out_type,
            coin=coin_network,
            display=display,
        )