{
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  "to": 1,
  "order": "ASCENDING",
  "type": "TAG_KEYS_AND_VALUES",
  "source": "",
  "aggregationSize": 1000,
  "queries": [
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      "id": "id-0",
      "namespace": "Vespa",
      "filter": {
        "type": "Chain",
        "filters": [
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            "type": "TagValueRegex",
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}