In short this library is intended to make loading Julia structs/types from their BSON representation very efficient. I already wrote a post about this package, detailing some of my reasoning and optimisations.
I have now also added a new interface that allows for partial lazy loading and should be completely type stable if you know the concrete type you want to deserialise in advance. Please see the links above for an explanation.
 As defined by the original BSON.jl which can serialise almost any Julia type