async def METHOD_NAME(history_server):
    now = datetime.utcnow()
    old = now - timedelta(days=6)
    res = await history_server.var.read_raw_history(old, now, 5)
    assert 5 == len(res)
    assert res[-1].Value.Value == history_server.values[4]
    assert res[0].Value.Value == history_server.values[0]