def add_extension(self, extension):
        if extension:
            if os.path.exists(extension):
                self._extension_files.append(extension)
            else:
                raise IOError("Path to the extension doesn't exist")
        else:
            raise ValueError("argument can not be null")
Adds the path to the extension to a list that will be used to extract it
dataset/ETHPy150Open apiad/sublime-browser-integration/selenium/webdriver/chrome/options.py/Options.add_extension