Go GORM和界面

I have a lot of different tables (60) with different structures. I don't want write create() / read() methods for all. The best solution for me is using interface. But GORM dont want to work correct with interface

var b = model.SomeTable{}
// var b = model.factory(some_name)

func(in interface{}) {
    err = postgres.DB.First(&in).Error
    if err != nil {
        panic(err)
    }
}(b)

(unsupported destination, should be slice or struct)