dvobject detailed documentation

Is there any detailed documentation about what the different tables in the parsed dvobject infer?

For example, I was trying to find the pathways linked to the drugs. I could see two tables I could use for this: DrugBank_data$drugs$pathway$general_information and DrugBank_data$drugs$pathway$pathway_drugs where DrugBank_data contains the parsed dvobject. In either table, there are smpdb_id and drugbank_id columns which make me assume both should give the association between drugs and pathways. But when I checked for drug DB00114, I realized that the general_information table lists much fewer pathways than the pathway_drugs table. The general_information seems to be the one listed on the DrugBank drug page.

I think detailed documentation on what each of these tables means would be a good help.