Golang动态函数返回类型

Question

I have an app separated on modules. There are several Entities and CSV module. Csv module supports only struct(Entity), but i want to make CSV module works with any type of entity. Now it works like this: Csv module receives data from channel and strictly converts it to EverySize struct. How can I achieve dynamical return type, so it will works with any type of Entity, not only with Everysize

    func prepareWrapData(data []feed.WrapExporterChannels) []everysize.EverySizeItem {
        var result []everysize.EverySizeItem
        for _, value := range data {
            result = append(result, *value.EverySizeItem)
        }
    return result
}