transfer method
Implementation
Future<void> transfer(List<SpiTransfer> transfers) {
final tuples = transfers.map((e) {
final t = e.data._toNativeMemTransferData();
return Tuple3(t.item1, e.properties, t.item2);
}).toList();
final rawTransfers = tuples.map((e) => SpiTransfer(data: e.item1, properties: e.item2)).toList();
return transferNativeMem(rawTransfers).whenComplete(() {
// call the postTransform callbacks for all spi transfers
tuples.forEach((e) => e.item3());
});
}