{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "#/components/schemas/PaymentMethodResponse",
  "title": "PaymentMethod",
  "required": [
    "paymentSystem"
  ],
  "type": "object",
  "properties": {
    "paymentAccountId": {
      "type": "string",
      "nullable": true
    },
    "paymentSystem": {
      "type": "string",
      "nullable": true
    },
    "installments": {
      "type": "integer",
      "format": "int32",
      "nullable": true
    }
  },
  "additionalProperties": false
}