@query_params('master_timeout', 'timeout')
    def verify_repository(self, repository, params=None):
        """
        Returns a list of nodes where repository was successfully verified or
        an error message if verification process failed.
        `<http://www.elastic.co/guide/en/elasticsearch/reference/current/modules-snapshots.html>`_

        :arg repository: A repository name
        :arg master_timeout: Explicit operation timeout for connection to master
            node
        :arg timeout: Explicit operation timeout
        """
        if SKIP_IN_PATH in repository:
            raise ValueError("Empty value passed for a required argument 'repository'.")
        return self.transport.perform_request('POST', _make_path('_snapshot',
            repository, '_verify'), params=params)
dataset/ETHPy150Open elastic/elasticsearch-py/elasticsearch/client/snapshot.py/SnapshotClient.verify_repository/swapped operands of `in`