{
  "fields": [
    {
      "name": "transaction_type",
      "type": "string",
      "title": "TRANSACTION_TYPE"
    },
    {
      "name": "month",
      "type": "date",
      "title": "MONTH_OF_TRANSACTION",
      "description": "The first day of the month of the renewal."
    },
    {
      "name": "lead_time_days",
      "type": "integer",
      "title": "LEAD_TIME",
      "description": "Days between payment and the licence's expiry. The publisher writes these as negative numbers, so -3 is 3 days early."
    },
    {
      "name": "renewal_lag",
      "type": "string",
      "title": "RENEWAL_LAG"
    },
    {
      "name": "renewals",
      "type": "integer",
      "title": "NUMBER_OF_RENEWALS"
    }
  ],
  "missingValues": [
    ""
  ]
}