replication Specification
Specifies the ReplicationStrategy of a keyspace. The options are:
SINGLE_REGIONfor a single Region keyspace (optional) orMULTI_REGIONfor a multi-Region keyspace If noReplicationStrategyis provided, the default isSINGLE_REGION. If you chooseMULTI_REGION, you must also provide aRegionListwith the AWS Regions that the keyspace is replicated in.