private void assertNoInnerComponents(ChainSpecification specWithoutInnerComponents) {
        for (ComponentSpecification component : specWithoutInnerComponents.componentReferences) {
            assert (component.getNamespace() == null);
        }
    }
Represents a component chain in the vespa model.
The inner components are represented as children.

@author Tony Vaagenes
@author gjoranv
config-model/src/main/java/com/yahoo/vespa/model/container/component/chain/Chain.java