71 def _get_unique_device(product=None, adb_path='adb'):  argument
75     return AndroidDevice(devices[0], product, adb_path)
78 def _get_device_by_serial(serial, product=None, adb_path='adb'):  argument
81             return AndroidDevice(serial, product, adb_path)
85 def get_device(serial=None, product=None, adb_path='adb'):  argument
107         return _get_device_by_serial(serial, product, adb_path)
111         return _get_device_by_serial(android_serial, product, adb_path)
113     return _get_unique_device(product, adb_path=adb_path)
262     def __init__(self, serial, product=None, adb_path='adb'):  argument
264         self.product = product
270         if self.product is not None:
271             self.adb_cmd.extend(['-p', product])