{
  "train": {
    "order_leak": "churned",
    "category_variants": [
      "country",
      "plan"
    ],
    "numeric_text": [
      "monthly_spend"
    ],
    "disguised_missing": [
      "age",
      "country",
      "income"
    ],
    "outliers": [
      "income"
    ],
    "mixed_date_formats": [
      "signup_date"
    ],
    "leakage": [
      "cancellation_reason"
    ],
    "constant": [
      "account_status"
    ],
    "id_columns": [
      "customer_id"
    ],
    "pii": [
      "email"
    ],
    "missing": [
      "referral_code"
    ],
    "exact_duplicates": 40,
    "conflicting_labels": 12
  },
  "test": {
    "overlap_rows": 30,
    "shifted": [
      "age"
    ],
    "unseen_categories": [
      "plan"
    ]
  }
}