{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "#/components/schemas/iban_last_chars",
  "title": "iban_last_chars",
  "type": "string",
  "description": "The last characters of the IBAN used to pay.",
  "minLength": 4,
  "maxLength": 34,
  "pattern": "[a-zA-Z0-9]{4}"
}