def lookup(self, auth, type, mapping, defer=False):
return self._call('<STR_LIT>', auth, [type, mapping], defer)<EOL>
Look up a Resource ID by alias, owned Resource ID, or share activation code under the
        client specified in <ClientID>.

        Args:
            auth: <cik>
            type: Type of resource to lookup (alias | owner | shared)
            mapping: Based on resource type defined above.