c.MergedResourceConfig = mergedResourceConfig

	return err
}

func unknownGroups(groups []string, registry GroupRegistry) []string {
	unknownGroups := []string{}
	for _, group := range groups {
		if !registry.IsGroupRegistered(group) {
			unknownGroups = append(unknownGroups, group)
		}
	}
	return unknownGroups
}

// GroupRegistry provides a method to check whether given group is registered.