class RecyclerMixin implements Mixin {

    public Adapter<? extends ViewHolder> getAdapter() {
        @SuppressWarnings("unchecked") // RecyclerView.getAdapter returns raw type :(
        final RecyclerView.Adapter<? extends ViewHolder> adapter = mRecyclerView.getAdapter();
        if (adapter instanceof HeaderAdapter) {
            return ((HeaderAdapter<? extends ViewHolder>) adapter).getWrappedAdapter();
        }
        return adapter;
    }

    public  RecyclerMixin(@NonNull TemplateLayout layout, @NonNull RecyclerView recyclerView);

}