def raise_409(instance):
    instance.response.status = 409
    raise ResponseException(instance.response)
Handles the user asking for a DockControl to be maximized/restored.
dataset/ETHPy150Open pneff/wsgiservice/wsgiservice/status.py/raise_409--crossover with--dataset/ETHPy150Open enthought/pyface/pyface/dock/dock_window.py/DockWindow.on_min_max