[
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    "ts": "2026-01-15T00:00:00Z",
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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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  },
  {
    "device_id": "dev_3",
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  },
  {
    "device_id": "dev_4",
    "ts": "2026-01-15T11:00:00Z",
    "temp_c": 21,
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  }
]