dispose method
Signs a static key using the identity key
Implementation
// Future<Uint8List> signStaticKey(Uint8List staticKey) async {
// final message = 'noise-libp2p-static-key:${String.fromCharCodes(staticKey)}';
// final signature = await Ed25519().sign(
// message.codeUnits,
// keyPair: _identityKey,
// );
// return Uint8List.fromList(signature.bytes);
// }
Future<void> dispose() async {
_isDisposed = true;
}