49     def __init__(self,  argument
55         self.package = package
56         self.url = url
57         self.ab_install_type = ab_install_type
58         self.ab_force_switch_slot = ab_force_switch_slot
59         self.ab_verify_payload_metadata = ab_verify_payload_metadata
60         self.streaming_required = (
65         self.streaming_optional = (
71         self._config = None
74     def config(self):  argument
76         return self._config
78     def run(self):  argument
80         self._config = {
82             'name': self.ab_install_type[0] + ' ' + os.path.basename(self.package)[:-4],
83             'url': self.url,
84             'ab_config': self._gen_ab_config(),
85             'ab_install_type': self.ab_install_type,
88     def _gen_ab_config(self):  argument
90         with zipfile.ZipFile(self.package, 'r') as package_zip:
92                 'property_files': self._get_property_files(package_zip),
93                 'verify_payload_metadata': self.ab_verify_payload_metadata,
94                 'force_switch_slot': self.ab_force_switch_slot,
117     def write(self, out):  argument
120             json.dump(self.config, out_file, indent=4, separators=(',', ': '), sort_keys=True)