{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "#/components/schemas/card_verification_method",
  "title": "Card Verification Method",
  "type": "string",
  "description": "The verification method of the card.",
  "minLength": 1,
  "maxLength": 255,
  "pattern": "^[0-9A-Z_]+$"
}