{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"$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}"
}