def register_service(self, url, data=None, overwrite=True):
data = data or {}<EOL>args = dict(data)<EOL>args['<STR_LIT:url>'] = url<EOL>service = Service(**args)<EOL>service = self.store.save_service(service, overwrite=overwrite)<EOL>return service.params<EOL>
Implementation of :meth:`twitcher.api.IRegistry.register_service`.