@query_params('master_timeout')
    def delete_mapping(self, index, doc_type, params=None):
        """
        Delete a mapping (type) along with its data.
        `<http://www.elastic.co/guide/en/elasticsearch/reference/current/indices-delete-mapping.html>`_

        :arg index: A comma-separated list of index names (supports wildcard);
            use `_all` for all indices
        :arg doc_type: A comma-separated list of document types to delete
            (supports wildcards); use `_all` to delete all document types in the
            specified indices.
        :arg master_timeout: Specify timeout for connection to master
        """
        for param in (index, doc_type):
            if SKIP_IN_PATH in param:
                raise ValueError("Empty value passed for a required argument.")
        _, data = self.transport.perform_request('DELETE', _make_path(index, '_mapping', doc_type),
            params=params)
        return data
dataset/ETHPy150Open KunihikoKido/sublime-elasticsearch-client/lib/elasticsearch/client/indices.py/IndicesClient.delete_mapping/swapped operands of `in`