79     def __init__(self, path, serial=None):  argument
81         self.serial = serial
108         command = '%s -s %s %s' % (self.path, self.serial, cmdline)
139                  serial=None, apks=None):  argument
145         use_device = use_device or serial or \
148         self.adb.serial = self._resolve_serial(use_device, serial)
150         if self.adb.serial:
154         if self.adb.serial is None and not self._is_android_env:
232     def _resolve_serial(self, device, serial):  argument
244             if serial:
247                                         (self.adb.path, serial))
252                         'device mode?' % serial)
256                         'into device mode and try again.' % serial)
257                 return serial
260                 serial = os.environ['ANDROID_SERIAL']
261                 command = '%s -s %s get-state' % (self.adb, serial)
267                         'found.' % serial)
269                     return serial
313                         (device_apk, self.adb.serial))
333                     'device "%s".' % self.adb.serial)
353                         '"/system/product/priv-app"' % self.adb.serial,
361                         'pulled from on device "%s".' % self.adb.serial)
381                         % (file_path, self.adb.serial), file=sys.stderr)
387                         'device "%s".' % (fallback_file_path, self.adb.serial))
652             serial=args.serial,