Is Ruby compatible with strict Page Object Pattern?

I have built various Test Automation frameworks using the Page Object Pattern with Java (http://ift.tt/19A2hZK).

Two of the big benefits I have found are:

1) You can see what methods are available when you have an instance of a page (e.g. typing "homepage." will show me all the actions/methods you can call from the homepage)

2) Because navigation methods (e.g. gotoHomepage()) return an instance of the subsequent page (e.g. homepage), you can navigate through your tests simply by writing the code and seeing where it takes you.

e.g.

WelcomePage welcomePage = loginPage.loginWithValidUser(validUser);
PaymentsPage paymentsPage = welcomePage.goToPaymentsPage();

These benefits work perfectly with Java since the type of object (or page in this case) is known by the IDE.

However, with Ruby, the object type is not known until runtime and therefore, I cannot see how you can realise these benefits on an automation suite built using Ruby (e.g. a Calabash automation suite).

Can anyone show me how you would use Ruby to gain these benefits (ideally when using with Cucumber)?