Grape实体和单表继承

Question

假设我有基类"Attachment <ActiveRecord :: Base"和2个子类"Attachment :: Video <Attachment","Attachment :: Image <Attachment".

present Attachment.all, with: API::Entities::AttachmentEntity

但我想为不同的子类使用不同的实体.附件::视频应与API :: Entities :: AttachmentEntity :: Video等一起出现

葡萄有可能吗？