Delete specific alias.
        `<http://www.elastic.co/guide/en/elasticsearch/reference/current/indices-aliases.html>`_

        :arg index: A comma-separated list of index names (supports wildcards);
            use `_all` for all indices
        :arg name: A comma-separated list of aliases to delete (supports
            wildcards); use `_all` to delete all aliases for the specified
            indices.
        :arg master_timeout: Specify timeout for connection to master
        :arg request_timeout: Explicit timeout for the operation

def delete_alias(self, index, name, params=None):
        """
        Delete specific alias.
        `<http://www.elastic.co/guide/en/elasticsearch/reference/current/indices-aliases.html>`_

        :arg index: A comma-separated list of index names (supports wildcards);
            use `_all` for all indices
        :arg name: A comma-separated list of aliases to delete (supports
            wildcards); use `_all` to delete all aliases for the specified
            indices.
        :arg master_timeout: Specify timeout for connection to master
        :arg request_timeout: Explicit timeout for the operation
        """
        for param in (index, name):
            if param in SKIP_IN_PATH:
                raise ValueError("Empty value passed for a required argument.")
        return self.transport.perform_request(
            "DELETE", _make_path(index, "_alias", name), params=params
        )