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