public void registerEventHandler(EventHandler eventHandler) {
        Preconditions.checkNotNull(eventHandler, "Event handler definition cannot be null");
        stub.addEventHandler(
                EventServicePb.AddEventHandlerRequest.newBuilder()
                        .setHandler(protoMapper.toProto(eventHandler))
                        .build());
    }
Register an event handler with the server

@param eventHandler the event handler definition
grpc-client/src/main/java/com/netflix/conductor/client/grpc/EventClient.java