Is there a better documentation for the response we are getting from the GetAccountHistory endpoint?

I see that the Transaction object has the technical description for its fields (int/string, what length, etc...) but no business description.

For example, what does OfxCheckNumHandling or OfxTrnType mean?

Here is the link I used: https://docs.q2api.com/docs/q2-caliper-api/b3A6NjQxMzE5OTY-get-account-history