def METHOD_NAME(flush_guard):
    df = vaex.example()
    x = vaex.jupyter.model.Axis(df=df, expression='x')
    y = vaex.jupyter.model.Axis(df=df, expression='y')
    view = df.widget.data_array(axes=[x, y])
    flush(all=True)
    assert view.model.grid is not None