How can I detect that user has completed the product tour?

I have configured product tour for my SaaS application. I am triggering start of the product tour with my application's frontend with JS API Intecrom('startTour', 'tourId').

Product tours will be shown to some of users. And I want to have custom logic in my application for users who completed product tour (navigate user to another page or show some different text). So I need to detect if user completed product tour.

Is there any way to track that user completed all steps of the product tour? May I have some JS callback for that event, for example: Intecrom('onProdcutToutCompleted', { ... some custom logic })? Or may be there are exist other ways to catch event of finishing product tours?

Thank you in advance!