register method
Implementation
Future<String> register(AptosAccount coinReceiver, String coinType) async {
final payload = EntryFunctionPayload(
functionId: "0x1::managed_coin::register",
typeArguments: [coinType],
arguments: []);
final rawTxn = await aptosClient.generateTransaction(coinReceiver, payload);
final bcsTxn = aptosClient.signTransaction(coinReceiver, rawTxn);
final txn = await aptosClient.submitSignedBCSTransaction(bcsTxn);
return txn["hash"];
}