Feature Request: Value Suppliers for iff, condWith, condAttr, etc.....

[Aison0]

I wish iff and condWith functions with Supplier parameters

public static <T> T iff(boolean condition, Supplier<T> valueSupplier) {
        return condition ? valueSupplier.get() : null;
}

or

public T condAttr(boolean condition, String attribute, Supplier<String> valueSupplier) {
        return (condition ? attr(attribute, valueSupplier.get()) : self());
}