def unregister(self, plugin=None, name=None):
        if name is None:
            assert plugin is not None, "one of name or plugin needs to be specified"
            name = self.get_name(plugin)

        if plugin is None:
            plugin = self.get_plugin(name)

        # if self._name2plugin[name] == None registration was blocked: ignore
        if self._name2plugin.get(name):
            del self._name2plugin[name]

        for hookcaller in self._plugin2hookcallers.pop(plugin, []):
            hookcaller._remove_plugin(plugin)

        return plugin
Get the description of available video subtitles.
dataset/ETHPy150Open pytest-dev/pytest/_pytest/vendored_packages/pluggy.py/PluginManager.unregister--crossover with--dataset/ETHPy150Open disqus/playa/playa/lib/vlc.py/libvlc_video_get_spu_description