authorizeStake method

Implementation

Future<KeyedSignature> authorizeStake(String withdrawer) async {
  try {
    var response = await sendMessage(formatRequest(
            method: 'authorizeStake', params: {'withdrawer': withdrawer}))
        .then((Map<String, dynamic> data) {
      if (data.containsKey('result')) {
        KeyedSignature sig =
            KeyedSignature.fromJson(data['result']['signature']);
        return sig;
      }
    });
    return response!;
  } on NodeException catch (e) {
    throw NodeException(
        code: e.code, message: '{"authorizeStake": "${e.message}"}');
  }
}