{
  "columns": {
    "tenure_months": {
      "type": "int",
      "min": 1,
      "max": 72,
      "null_rate": 0.0
    },
    "monthly_charges": {
      "type": "float",
      "min": 200.15,
      "max": 4999.38,
      "null_rate": 0.0
    },
    "total_charges": {
      "type": "float",
      "min": 254.41,
      "max": 422423.78,
      "null_rate": 0.0
    },
    "num_complaints": {
      "type": "int",
      "min": 0,
      "max": 13,
      "null_rate": 0.0
    },
    "data_usage_gb": {
      "type": "float",
      "min": 0.1,
      "max": 50.0,
      "null_rate": 0.0
    },
    "contract_type": {
      "type": "str",
      "values": [
        "month-to-month",
        "one-year",
        "two-year"
      ],
      "null_rate": 0.0
    },
    "payment_method": {
      "type": "str",
      "values": [
        "bank_transfer",
        "credit_card",
        "mobile_money",
        "cash"
      ],
      "null_rate": 0.0
    },
    "segment": {
      "type": "str",
      "values": [
        "prepaid",
        "postpaid"
      ],
      "null_rate": 0.0
    }
  }
}