如何在elasticsearch中消除结果中具有相同数据的字段？

GET /index/_search
{
  "size": 0,
  "aggs": {
    "unique_field": {
      "terms": {
        "field": "field.keyword",
        "size": 10
      }
    }
  }
}

GET /index/_search
{
  "size": 0,
  "aggs": {
    "unique_field": {
      "terms": {
        "field": "field.keyword",
        "size": 10
      },
      "aggs": {
        "unique_docs": {
          "top_hits": {
            "_source": {
              "includes": ["field"]
            },
            "size": 1
          }
        }
      }
    }
  }
}

from elasticsearch import Elasticsearch

es = Elasticsearch()

response = es.search(
    index="index",
    body={
        "size": 0,
        "aggs": {
            "unique_field": {
                "terms": {
                    "field": "field.keyword",
                    "size": 10
                },
                "aggs": {
                    "unique_docs": {
                        "top_hits": {
                            "_source": {
                                "includes": ["field"]
                            },
                            "size": 1
                        }
                    }
                }
            }
        }
    }
)

unique_results = [hit["_source"]["field"] for hit in response["aggregations"]["unique_field"]["buckets"]]