{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "#/components/schemas/billing_agreement_id",
  "title": "billing_agreement_id",
  "type": "string",
  "description": "The PayPal billing agreement ID. References an approved recurring payment for goods or services.",
  "minLength": 2,
  "maxLength": 128,
  "pattern": "^[a-zA-Z0-9-]+$"
}