public java.util.List<ConfigureShard> getReplicaConfiguration() {
        if (replicaConfiguration == null) {
            replicaConfiguration = new com.amazonaws.internal.SdkInternalList<ConfigureShard>();
        }
        return replicaConfiguration;
    }
<p>
A list of <code>ConfigureShard</code> objects that can be used to configure each shard in a Redis OSS (cluster
mode enabled) replication group. The <code>ConfigureShard</code> has three members: <code>NewReplicaCount</code>,
<code>NodeGroupId</code>, and <code>PreferredAvailabilityZones</code>.
</p>

@return A list of <code>ConfigureShard</code> objects that can be used to configure each shard in a Redis OSS
        (cluster mode enabled) replication group. The <code>ConfigureShard</code> has three members:
        <code>NewReplicaCount</code>, <code>NodeGroupId</code>, and <code>PreferredAvailabilityZones</code>.
aws-java-sdk-elasticache/src/main/java/com/amazonaws/services/elasticache/model/IncreaseReplicaCountRequest.java