@property
    def unique_storage_type(self):

        if len(self.storage_types) == 1:
            return list(self.storage_types)[0]
        else:
            return None
Handles the mouse leaving the window.
dataset/ETHPy150Open Stiivi/brewery/brewery/probes.py/StorageTypeProbe.unique_storage_type--crossover with--dataset/ETHPy150Open enthought/pyface/pyface/dock/dock_window.py/DockWindow._mouse_leave