code: public IncreaseReplicaCountRequest withReplicaConfiguration(ConfigureShard... replicaConfiguration) {
          if (this.replicaConfiguration == null) {
              setReplicaConfiguration(new com.amazonaws.internal.SdkInternalList<ConfigureShard>(replicaConfiguration.length));
          }
          for (ConfigureShard ele : replicaConfiguration) {
              this.replicaConfiguration.add(ele);
          }
          return this;
      }
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>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setReplicaConfiguration(java.util.Collection)} or {@link #withReplicaConfiguration(java.util.Collection)}
  if you want to override the existing values.
  </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>.
  @return Returns a reference to this object so that method calls can be chained together.