public void addAttributesAction(ImmutableAttributesFactory attributesFactory, VariantAction<? super AttributeContainer> action) {
        if (variantAttributesRules == null) {
            variantAttributesRules = new VariantAttributesRules(attributesFactory);
        }
        variantAttributesRules.addAttributesAction(action);
    }

    public void addCapabilitiesAction(VariantAction<? super MutableCapabilitiesMetadata> action) {