                /**
                 * List of Instances in the selected Cluster.
                 * This is an array of Hostname/IP strings.
                 */
                instances: {
                    type: Array,
                },
                /**
                 * When false, this element is disabled and cannot be interacted with.
                 */
                enabled: {
                    type: Boolean,
                    value: false,
                },
                /**
       