public Optional<String> creationTimestamp() {
        return Optional.ofNullable(this.creationTimestamp);
    }
@return CreationTimestamp is a timestamp representing the server time when this object was created. It is not guaranteed to be set in happens-before order across separate operations. Clients may not set this value. It is represented in RFC3339 form and is in UTC.

Populated by the system. Read-only. Null for lists. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata
sdk/java/src/main/java/com/pulumi/kubernetes/meta/v1/outputs/ObjectMeta.java