def test_view_retains_ndarray_subclass():
    adata = ad.AnnData(np.zeros((10, 10)))
    adata.obsm["foo"] = np.zeros((10, 5)).view(NDArraySubclass)

    view = adata[:5, :]

    assert isinstance(view.obsm["foo"], NDArraySubclass)
    assert view.obsm["foo"].shape == (5, 5)
def add_user():
    form = AddUserForm()
    if form.validate_on_submit():
        form.save()
        flash(_("User added."), "success")
        return redirect(url_for("management.users"))

    return render_template("management/user_form.html", form=form,
                           title=_("Add User"))