.converter(new MapConverter())
            .fromType(Project.class, new ProjectConverter());

    public static NotationParser<Object, Set<ComponentSelector>> multiParser() {
        return builder().toFlatteningComposite();
    }

    public static NotationParser<Object, ComponentSelector> parser() {
        return builder().toComposite();
    }

    private static NotationParserBuilder<Object, ComponentSelector> builder() {

        this.invalidNotationMessage = invalidNotationMessage;
        return this;
    }

    public NotationParser<N, Set<T>> toFlatteningComposite() {
        return wrapInErrorHandling(new FlatteningNotationParser<>(create()));
    }

    public NotationParser<N, T> toComposite() {
        return wrapInErrorHandling(create());
    }

public class ModuleVersionSelectorParsers {

    public static NotationParser<Object, Set<ModuleVersionSelector>> multiParser(String dslContext) {
        return builder(dslContext).toFlatteningComposite();
    }

    public static NotationParser<Object, ModuleVersionSelector> parser(String dslContext) {
        return builder(dslContext).toComposite();
    }