'List of available operation modes.'

@property
def operation_list(self):

    op_list = ['off']
    modes = self.wink.modes()
    if ('cool_only' in modes):
        op_list.append(STATE_COOL)
    if ('auto_eco' in modes):
        op_list.append(STATE_ECO)
    if ('fan_only' in modes):
        op_list.append(STATE_FAN)
    return op_list
