{
  "session_name": "session_20260105_105538",
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  "stage_2_start": "2026-01-05T10:55:41.293721",
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  "stage_4_start": "2026-01-05T10:55:55.153075",
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    "contact_recording": 3.9437801837921143,
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    "vt_sensors": {
      "vt_1": {
        "static_video": "data/session_20260105_105538/vt_1/static/static.mp4",
        "contact_video": "data/session_20260105_105538/vt_1/contact/contact.mp4"
      },
      "vt_2": {
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        "contact_video": "data/session_20260105_105538/vt_2/contact/contact.mp4"
      }
    }
  },
  "label": "5"
}