I am trying to verify that these events are triggering at the correct step in our funnel with the right parameters but there's little documentation on how to figure this out.
According to this documentation https://support.google.com/firebase/answer/9234069?hl=en&ref_topic=6317484 there should be a free_trial parameter on in_app_purchase but we're not receiving this property.
I've tried looking for the source code but according to this link, the analytics package is not open source.
Any insight into these two events or where to learn more about how they're fired would be appreciated!