{
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    {
      "collectionGroup": "sets",
      "queryScope": "COLLECTION",
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        },
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        }
      ]
    },
    {
      "collectionGroup": "sets",
      "queryScope": "COLLECTION",
      "fields": [
        {
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        },
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        },
        {
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        }
      ]
    },
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        },
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        }
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        },
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        },
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    {
      "collectionGroup": "progress",
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        {
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        },
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        },
        {
          "fieldPath": "start_time",
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        }
      ]
    }
  ],
  "fieldOverrides": []
}