我想獲取相應(yīng)特定字段的所有數(shù)據(jù)，并有彈性搜索的響應(yīng)。{"took": 2,"timed_out": false,"_shards": {    "total": 5,    "successful": 5,    "skipped": 0,    "failed": 0},"hits": {    "total": {        "value": 35,        "relation": "eq"    },    "max_score": 0.44183275,    "hits": [        {            "_index": "allevents",            "_type": "_doc",            "_id": "jQPDaG0BcOh3oggcguoV",            "_score": 0.44183275,            "_source": {                "category": "sessions",                 "contentid": "KqRLj2lWZ3",                "clientname": "omkarpathlab",------------------}]我嘗試了搜索功能，它返回一個(gè)錯(cuò)誤。var elasticsearch = require('elasticsearch');var client = new elasticsearch.Client({    host: 'aaa',    log: 'trace',    apiVersion: '7.1'});client.search({    "size": 20,    "query": {        "query_string": {        "default_field": "clientname",        "query": "omkarlab"        }    }     }).then((res) => {        console.log("resultData", res);    }, (err) => {        console.log("err", err);    });enter code here錯(cuò)誤顯示：{ 錯(cuò)誤：[illegal_argument_exception] 請求 [/_search] 包含無法識別的參數(shù)：[查詢]請建議我如何解決此類問題。