public Builder namespace(@Nullable Output<String> namespace) {
            $.namespace = namespace;
            return this;
        }
@param namespace namespace is the namespace of the resource being referenced. This field is required when scope is set to &#34;Namespace&#34; and must be unset when scope is set to &#34;Cluster&#34;.

@return builder
sdk/java/src/main/java/com/pulumi/kubernetes/networking/v1/inputs/IngressClassParametersReferenceArgs.java