code: def clear_scroll(self,
              scroll_id = None,
              body      = '',
              params    = {},
              callback  = None,
              **kwargs
          ):
          
  
          url = self.mk_url(*['_search', 'scroll', scroll_id])
  
          self.client.fetch(
              self.mk_req(url, method='DELETE', body=body, **kwargs),
              callback = callback
          )
docs: Clear the scroll request created by specifying the scroll parameter to
          search.
          `<http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/search-request-scroll.html>`_
          :arg scroll_id: The scroll ID or a list of scroll IDs
          :arg body: A comma-separated list of scroll IDs to clear if none was
              specified via the scroll_id parameter