I've read LCDS/Data Management docs about managing object associations several times and still can't understand what should I return from my assembler in the case of lazy references.
Docs states several times that I should return object where references to child objects are replaced with ids of that referenced objects. But what are this ids (UID, id property marked in destination, something other)? Where they should be populated, what property of what object? Example of fill method that return not fully populated object would be very helpful. Den

