def METHOD_NAME():
    """check that no gamma is used if not passed"""
    win = visual.Window([600,600], autoLog=False)#should not change gamma
    assert win.useNativeGamma==True
    win.close()
    """Or if gamma is provided but by a default monitor?"""
    win = visual.Window([600,600], monitor='blaah', autoLog=False)#should not change gamma
    assert win.useNativeGamma==True
    win.close()