signMessage method
Sign a solana program message
Implementation
Future<SignedTx> signMessage({
required Message message,
required String recentBlockhash,
}) async {
final compiledMessage = message.compile(
recentBlockhash: recentBlockhash,
feePayer: publicKey,
);
final signature = await sign(compiledMessage.toByteArray());
return SignedTx(signatures: [signature], compiledMessage: compiledMessage);
}