{
  "type": ["null", "object"],
  "properties": {
    "id": {
      "type": ["null", "integer"]
    },
    "refund_amount": {
      "type": ["null", "integer"]
    },
    "currency": {
      "type": ["null", "string"]
    },
    "status": {
      "type": ["null", "string"]
    },
    "resolution": {
      "type": ["null", "string"]
    },
    "domain": {
      "type": ["null", "string"]
    },
    "transaction": {
      "type": ["null", "object"],
      "properties": {}
    },
    "transaction_reference": {
      "type": ["null", "string"]
    },
    "category": {
      "type": ["null", "string"]
    },
    "customer": {
      "type": ["null", "object"],
      "properties": {}
    },
    "bin": {
      "type": ["null", "string"]
    },
    "last4": {
      "type": ["null", "string"]
    },
    "dueAt": {
      "type": ["null", "string"],
      "format": "date-time"
    },
    "resolvedAt": {
      "type": ["null", "string"],
      "format": "date-time"
    },
    "evidence": {
      "type": ["null", "string"]
    },
    "attachments": {
      "type": ["null", "string"]
    },
    "note": {
      "type": ["null", "string"]
    },
    "history": {
      "type": ["null", "array"],
      "items": {
        "type": ["null", "object"],
        "properties": {
          "status": {
            "type": ["null", "string"]
          },
          "by": {
            "type": ["null", "string"]
          },
          "createdAt": {
            "type": ["null", "string"],
            "format": "date-time"
          }
        }
      }
    },
    "messages": {
      "type": ["null", "array"],
      "items": {
        "type": ["null", "object"],
        "properties": {
          "sender": {
            "type": ["null", "string"]
          },
          "body": {
            "type": ["null", "string"]
          },
          "createdAt": {
            "type": ["null", "string"],
            "format": "date-time"
          }
        }
      }
    },
    "createdAt": {
      "type": ["null", "string"],
      "format": "date-time"
    },
    "updatedAt": {
      "type": ["null", "string"],
      "format": "date-time"
    }
  }
}