public Builder namespace(@Nullable Output<String> namespace) {
            $.namespace = namespace;
            return this;
        }
@param namespace Namespace that contains the referenced resource. Must be empty for cluster-scoped resources and non-empty for namespaced resources.

@return builder
sdk/java/src/main/java/com/pulumi/kubernetes/resource/v1alpha1/inputs/ResourceClassParametersReferenceArgs.java