{
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    "groundtruthAlignRows": 5813,
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    "measureAlignRowsByRole": {
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      "mobile": "data/processed/0708/session_20260708_140641/measure/raw/mobile",
      "rokid": "data/processed/0708/session_20260708_140641/measure/raw/rokid",
      "watch": "data/processed/0708/session_20260708_140641/measure/raw/watch"
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  "sourceSession": "/home/zyshe/code/zyshe/insight/data/processed/0708/session_20260708_140641",
  "timeReference": "watch_overlap_absolute_aligned_timestamp"
}