{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "#/components/schemas/payment_initiator",
  "title": "payment_initiator",
  "type": "string",
  "minLength": 1,
  "maxLength": 255,
  "pattern": "^[0-9A-Z_]+$",
  "description": "The person or party who initiated or triggered the payment.",
  "enum": [
    "CUSTOMER",
    "MERCHANT"
  ]
}