public Optional<String> format() {
        return Optional.ofNullable(this.format);
    }
@return format is an optional OpenAPI type definition for this column. The &#39;name&#39; format is applied to the primary identifier column to assist in clients identifying column is the resource name. See https://github.com/OAI/OpenAPI-Specification/blob/master/versions/2.0.md#data-types for details.
sdk/java/src/main/java/com/pulumi/kubernetes/apiextensions/v1beta1/outputs/CustomResourceColumnDefinitionPatch.java