override fun getItemOffsets(outRect: Rect, view: View, parent: RecyclerView,
      state: RecyclerView.State?) {
    val position = parent.getChildAdapterPosition(view)
    val adapter = parent.adapter
    if (adapter is EpoxyControllerAdapter) {
      val model = adapter.getModelAtPosition(position)
      //if you are using Epoxy's annotations
      when (model::class.java.superclass) {
        PhotoModel::class.java -> outRect.set(5, 5, 5, 5)
        CollectionModel::class.java -> outRect.set(10, 10, 10, 10)
        else -> outRect.setEmpty()
      }
      //if you are not using Epoxy's annotations
      /*when (model::class) {
        PhotoModel::class -> outRect.set(5, 5, 5, 5)
        CollectionModel::class-> outRect.set(10, 10, 10, 10)
        else -> outRect.setEmpty()
      }*/
    } else {
      outRect.setEmpty()
    }
  }