class JRPCError extends Error {
  String message;
  JRPCError(this.message);

  @override
  String toString() => message;
}

int? int_fromJson(dynamic val) {
  if (val == null) {
    return null;
  } else if (val is int) {
    return val;
  } else if (val is double) {
    return val.toInt();
  } else {
    throw JRPCError("Not a number!");
  }
}

double? double_fromJson(dynamic val) {
  if (val == null) {
    return null;
  } else if (val is int) {
    return val.toDouble();
  } else if (val is double) {
    return val;
  } else {
    throw JRPCError("Not a number!");
  }
}

bool? bool_fromJson(dynamic val) {
  if (val == null) {
    return null;
  } else if (val is bool) {
    return val;
  } else {
    throw JRPCError("Not a bool!");
  }
}

String? String_fromJson(dynamic val) {
  if (val == null) {
    return null;
  } else if (val is String) {
    return val;
  } else {
    return val.toString(); // TODO: Either this or error
    // throw JRPCError("Not a string!");
  }
}