Assigning a 1n relation

[fabulousduck]

currently i have a model that is as the following

	ConfirmedGuests      []interface{} `model:"Guest" relation:"1n" autosave:"true"`

In the flow that I have in my backend, I get the data for the guests and the data for the model that ConfirmedGuests lives in. I first create all guests and put their bson.ObjectId's in a slice. then I wish to assign them to ConfirmedGuests. But since ConfirmedGuests is of type []interface{} and my guests slice is of type []bson.ObjectId I cannot assign them when creating the struct ConfirmedGuests lives in. Is there any way of assigning this through a clever cast or something ?

Regards, Duck