{
  "authored_row_groups": [
    "G1",
    "G1",
    "G1",
    "G2",
    "G2",
    "G3",
    "G3",
    "G4",
    "G5",
    "G6"
  ],
  "group_sizes": {
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    "G2": 2,
    "G3": 2,
    "G4": 1,
    "G5": 1,
    "G6": 1
  },
  "grouped_folds": [
    {
      "fold": 0,
      "heldout_groups": [
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        "G6"
      ],
      "heldout_rows": [
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        1,
        2,
        9
      ],
      "training_rows": [
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        4,
        5,
        6,
        7,
        8
      ],
      "group_intersection": []
    },
    {
      "fold": 1,
      "heldout_groups": [
        "G2",
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      ],
      "heldout_rows": [
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        4,
        7
      ],
      "training_rows": [
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        1,
        2,
        5,
        6,
        8,
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      ],
      "group_intersection": []
    },
    {
      "fold": 2,
      "heldout_groups": [
        "G3",
        "G5"
      ],
      "heldout_rows": [
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        6,
        8
      ],
      "training_rows": [
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        1,
        2,
        3,
        4,
        7,
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      ],
      "group_intersection": []
    }
  ],
  "grouped_heldout_sizes": [
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    3,
    3
  ],
  "incorrect_row_round_robin_folds": [
    {
      "fold": 0,
      "heldout_rows": [
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        3,
        6,
        9
      ],
      "shared_groups_with_training": [
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      ]
    },
    {
      "fold": 1,
      "heldout_rows": [
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        7
      ],
      "shared_groups_with_training": [
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      ]
    },
    {
      "fold": 2,
      "heldout_rows": [
        2,
        5,
        8
      ],
      "shared_groups_with_training": [
        "G1",
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      ]
    }
  ],
  "rejected": [
    "too_few_groups",
    "missing_group",
    "boolean_k"
  ],
  "declared_group_identity_not_discovered_semantic_independence": true,
  "shuffle_stratification_model_training_or_sklearn_run": false
}