def METHOD_NAME(self, params=None):
    """
    Get cluster settings.
    `<http://www.elastic.co/guide/en/elasticsearch/reference/current/cluster-update-settings.html>`_
    :arg flat_settings: Return settings in flat format (default: false)
    :arg master_timeout: Explicit operation timeout for connection to master
        node
    :arg timeout: Explicit operation timeout
    """
    _, data = self.transport.perform_request('GET', '/_cluster/settings',
        params=params)
    return data