Empties the specified resource of data per specified constraints.

        Args:
            auth: <cik>
            resource: resource to empty.
            options: Time limits.

def flush(self, auth, resource, options=None, defer=False):
        """ Empties the specified resource of data per specified constraints.

        Args:
            auth: <cik>
            resource: resource to empty.
            options: Time limits.
        """
        args = [resource]
        if options is not None:
            args.append(options)
        return self._call('flush', auth, args, defer)