classFailoverDBClusterMessage(TypedDict,closed=True):db_cluster_identifier:NotRequired["capo_docdb.types.string.String"]"""<p>A cluster identifier to force a failover for. This parameter is not case sensitive.</p> <p>Constraints:</p> <ul> <li> <p>Must match the identifier of an existing <code>DBCluster</code>.</p> </li> </ul>"""target_db_instance_identifier:NotRequired["capo_docdb.types.string.String"]"""<p>The name of the instance to promote to the primary instance.</p> <p>You must specify the instance identifier for an Amazon DocumentDB replica in the cluster. For example, <code>mydbcluster-replica1</code>.</p>"""