How to use the elasticmock.utilities.get_random_scroll_id function in ElasticMock

# build aggregations
        if body is not None and 'aggs' in body:
            aggregations = {}

            for aggregation, definition in body['aggs'].items():
                aggregations[aggregation] = {
                    "doc_count_error_upper_bound": 0,
                    "sum_other_doc_count": 0,
                    "buckets": []
                }

            if aggregations:
                result['aggregations'] = aggregations

        if 'scroll' in params:
            result['_scroll_id'] = str(get_random_scroll_id())
            params['size'] = int(params.get('size') if 'size' in params else 10)
            params['from'] = int(params.get('from') + params.get('size') if 'from' in params else 0)
            self.__scrolls[result.get('_scroll_id')] = {
                'index': index,
                'doc_type': doc_type,
                'body': body,
                'params': params
            }
            hits = hits[params.get('from'):params.get('from') + params.get('size')]
        
        result['hits']['hits'] = hits
        
        return result