{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "#/components/schemas/NumberPurchase",
  "title": "NumberPurchase",
  "type": "object",
  "required": [
    "number",
    "countryCode"
  ],
  "properties": {
    "number": {
      "type": "string",
      "description": "The phone number to purchase in E.164 format."
    },
    "countryCode": {
      "type": "string",
      "description": "The two-letter ISO 3166-1 country code.",
      "minLength": 2,
      "maxLength": 2
    },
    "billingIntervalMonths": {
      "type": "integer",
      "description": "The billing interval in months.",
      "enum": [
        1,
        12
      ],
      "default": 1
    }
  }
}