private com.google.protobuf.RepeatedFieldBuilderV3<
            com.google.cloud.memorystore.v1.CrossInstanceReplicationConfig.RemoteInstance,
            com.google.cloud.memorystore.v1.CrossInstanceReplicationConfig.RemoteInstance.Builder,
            com.google.cloud.memorystore.v1.CrossInstanceReplicationConfig.RemoteInstanceOrBuilder>
        getSecondaryInstancesFieldBuilder() {
      if (secondaryInstancesBuilder_ == null) {
        secondaryInstancesBuilder_ =
            new com.google.protobuf.RepeatedFieldBuilderV3<
                com.google.cloud.memorystore.v1.CrossInstanceReplicationConfig.RemoteInstance,
                com.google.cloud.memorystore.v1.CrossInstanceReplicationConfig.RemoteInstance
                    .Builder,
                com.google.cloud.memorystore.v1.CrossInstanceReplicationConfig
                    .RemoteInstanceOrBuilder>(
                secondaryInstances_,
                ((bitField0_ & 0x00000004) != 0),
                getParentForChildren(),
                isClean());
        secondaryInstances_ = null;
      }
      return secondaryInstancesBuilder_;
    }
<pre>
Optional. List of secondary instances that are replicating from this
primary instance.

This field is only set for a primary instance.
</pre>

<code>
repeated .google.cloud.memorystore.v1.CrossInstanceReplicationConfig.RemoteInstance secondary_instances = 3 [(.google.api.field_behavior) = OPTIONAL];
</code>
java-valkey/proto-google-cloud-valkey-v1/src/main/java/com/google/cloud/memorystore/v1/CrossInstanceReplicationConfig.java