public Optional<Output<TypedLocalObjectReferencePatchArgs>> resource() {
        return Optional.ofNullable(this.resource);
    }
@return resource is an ObjectRef to another Kubernetes resource in the namespace of the Ingress object. If resource is specified, a service.Name and service.Port must not be specified. This is a mutually exclusive setting with &#34;Service&#34;.
sdk/java/src/main/java/com/pulumi/kubernetes/networking/v1/inputs/IngressBackendPatchArgs.java