public Optional<String> machineID() {
        return Optional.ofNullable(this.machineID);
    }
@return MachineID reported by the node. For unique machine identification in the cluster this field is preferred. Learn more from man(5) machine-id: http://man7.org/linux/man-pages/man5/machine-id.5.html
sdk/java/src/main/java/com/pulumi/kubernetes/core/v1/outputs/NodeSystemInfoPatch.java