private ConfigurationServerModel getConfigurationServerModel(
            @NonNull final ProvisionedMeshNode node) {
        final Element element = node.getElements().get(node.getUnicastAddress());
        if (element != null) {
            final MeshModel meshModel = element.getMeshModels().get((int) SigModelParser.CONFIGURATION_SERVER);
            if (meshModel instanceof ConfigurationServerModel) {
                return (ConfigurationServerModel) meshModel;
            }
        }
        return null;
    }
Returns the configuration server model in the primary element of the node.

@param node Mesh node
mesh/src/main/java/no/nordicsemi/android/mesh/transport/NodeDeserializer.java