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

        :arg body: The definition of `actions` to perform
        :arg master_timeout: Specify timeout for connection to master
        :arg request_timeout: Request timeout

def update_aliases(self, body, params=None):
        """
        Update specified aliases.
        `<http://www.elastic.co/guide/en/elasticsearch/reference/current/indices-aliases.html>`_

        :arg body: The definition of `actions` to perform
        :arg master_timeout: Specify timeout for connection to master
        :arg request_timeout: Request timeout
        """
        if body in SKIP_IN_PATH:
            raise ValueError("Empty value passed for a required argument 'body'.")
        return self.transport.perform_request(
            "POST", "/_aliases", params=params, body=body
        )