lookupOriginalAddress method
Implementation
Future<String> lookupOriginalAddress(String addressOrAuthKey) async {
final resource = await getAccountResource("0x1", "0x1::account::OriginatingAddress");
final handle = resource["data"]["address_map"]["handle"];
final tableItem = TableItem("address", "address", HexString.ensure(addressOrAuthKey).hex());
final origAddress = await queryTableItem(handle, tableItem);
return origAddress.toString();
}