Loading individual entries from BSON ignoring all others

I’ve been using BSON to save my data. I’m using Turing and saved a BNN model. I tried to save the model, but I can’t reload it without explicitly using every dependent package utilized and finally some function for VarName is not available (presumably something generated by @model). The work-around is to recreate the model, but I can’t load the other data in the BSON due to the loading error associated with the BNN model.

How can I a) force that all other entries are ignored and not interpreted during load except for the specified tags, or b) reinterpret a subset of the Dict returned by BSON.parse?