@abc.abstractproperty
    def is_powered(self):
        raise NotImplementedError
Given the name of an engine, returns the stored connection for that engine
dataset/ETHPy150Open adafruit/Adafruit_Python_BluefruitLE/Adafruit_BluefruitLE/interfaces/adapter.py/Adapter.is_powered--crossover with--dataset/ETHPy150Open weecology/retriever/lib/tools.py/get_saved_connection