"type": "keyword"
        },
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        "match_mapping_type": "string"
      }
    }
  ],
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      "type": "date",
      "format": "epoch_millis"
    },
    "docFreq": {
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    },
    "fields": {
      "type": "keyword"
    },
    "kinds": {
      "type": "keyword"
    },
    "queryFreq": {
      "type": "long"