70 def _get_unique_device(product=None, adb_path='adb'):  argument
74     return AndroidDevice(devices[0], product, adb_path)
77 def _get_device_by_serial(serial, product=None, adb_path='adb'):  argument
80             return AndroidDevice(serial, product, adb_path)
84 def get_device(serial=None, product=None, adb_path='adb'):  argument
106         return _get_device_by_serial(serial, product, adb_path)
110         return _get_device_by_serial(android_serial, product, adb_path)
112     return _get_unique_device(product, adb_path=adb_path)
227     def __init__(self, serial, product=None, adb_path='adb'):  argument
229         self.product = product
234         if self.product is not None:
235             self.adb_cmd.extend(['-p', product])