{
  "mode": "combined_epoch_table",
  "combined_table": "../incoming/institution_raw_physio_epoch.csv",
  "combined_columns": {
    "participant_uid": "participant_id",
    "sleep_date_local": "sleep_date_local",
    "epoch_start_utc": "epoch_start_utc",
    "epoch_end_utc": "epoch_end_utc",
    "epoch_index": "epoch_index",
    "epoch_minutes": "epoch_minutes",
    "hr_coverage_frac": "hr_coverage_frac",
    "ibi_coverage_frac": "ibi_coverage_frac",
    "physio_epoch_coverage_frac": "physio_epoch_coverage_frac",
    "hr_mean": "hr_mean",
    "hr_std": "hr_std",
    "hr_min": "hr_min",
    "hr_max": "hr_max",
    "ibi_count": "ibi_count",
    "ibi_mean_ms": "ibi_mean_ms",
    "ibi_std_ms": "ibi_std_ms",
    "ibi_rmssd_ms": "ibi_rmssd_ms",
    "ibi_sdnn_ms": "ibi_sdnn_ms",
    "ibi_pnn50": "ibi_pnn50",
    "ibi_hr_mean_bpm": "ibi_hr_mean_bpm",
    "hr_ibi_mean_gap_bpm": "hr_ibi_mean_gap_bpm"
  }
}