def clear_cache(self, index=None, params=None):
        """
        Clear either all caches or specific cached associated with one ore more indices.
        `<http://www.elastic.co/guide/en/elasticsearch/reference/current/indices-clearcache.html>`_

        :arg index: A comma-separated list of index name to limit the operation
        :arg allow_no_indices: Whether to ignore if a wildcard indices
            expression resolves into no concrete indices. (This includes `_all`
            string or when no indices have been specified)
        :arg expand_wildcards: Whether to expand wildcard expression to concrete
            indices that are open, closed or both., default 'open', valid
            choices are: 'open', 'closed', 'none', 'all'
        :arg field_data: Clear field data
        :arg fielddata: Clear field data
        :arg fields: A comma-separated list of fields to clear when using the
            `field_data` parameter (default: all)
        :arg ignore_unavailable: Whether specified concrete indices should be
            ignored when unavailable (missing or closed)
        :arg query: Clear query caches
        :arg recycler: Clear the recycler cache
        :arg request: Clear request cache
        :arg request_cache: Clear request cache
        """
        return self.transport.perform_request(
            "POST", _make_path(index, "_cache", "clear"), params=params
        )