import java.util.Set;

public class EmptySchema implements AttributesSchemaInternal {
    public static final EmptySchema INSTANCE = new EmptySchema();

    private final DoNothingCompatibilityRule compatibilityRule = new DoNothingCompatibilityRule();
    private final DoNothingDisambiguationRule disambiguationRule = new DoNothingDisambiguationRule();

    protected EmptySchema() {
    }

    @Override