*[<Null safety>](https://dart.dev/null-safety)*
void sendErrorEvent (dynamic flags, int status, InterfaceRequest request)
Create a error node to send onOpen event with failure status.
Implementation
void sendErrorEvent(
OpenFlags flags, int status, InterfaceRequest<Node> request) {
if ((flags & OpenFlags.describe) != OpenFlags.$none) {
final e = ErrorNodeForSendingEvent(status, _removeErrorNode, request);
_errorNodes.add(e);
} else {
request.close();
}
}