elasticsearch-js/docs/reference/api/AsyncSearchAsyncSearch.md

Interface AsyncSearchAsyncSearch

Name	Type	Description
_clusters	ClusterStatistics
_scroll_id	ScrollId
_shards	ShardStatistics	Indicates how many shards have run the query. Note that in order for shard results to be included in the search response, they need to be reduced first.
aggregations	TAggregations	Partial aggregations results, coming from the shards that have already completed running the query.
fields	Record<string, any>
hits	SearchHitsMetadata
max_score	double
num_reduce_phases	long	Indicates how many reductions of the results have been performed. If this number increases compared to the last retrieved results for a get asynch search request, you can expect additional results included in the search response.
pit_id	Id
profile	SearchProfile
suggest	Record<SuggestionName, SearchSuggest[]>
terminated_early	boolean
timed_out	boolean
took	long