How do I fix this error I got when trying the first FastAI example?

Doesn’t look like it. That gives me errors for both task or learner.

The closest is dump, which gives me this (too many characters to paste here):

From that I gathered I could subset the learner object by doing eg learner.model, but if I try names(learner) and so on I get errors.

Of course I can look at all the source code to figure out what is going on. But is there any easy way to figure out what I need to do to manipulate an arbitrary object?