Creates an alias for a resource.

        Args:
            auth: <cik>
            resource: <ResourceID>
            alias: alias to create (map)

def map(self, auth, resource, alias, defer=False):
        """ Creates an alias for a resource.

        Args:
            auth: <cik>
            resource: <ResourceID>
            alias: alias to create (map)
        """
        return self._call('map', auth, ['alias', resource, alias], defer)