{
  "name": "RatingRequest",
  "description": "SAP BRIM Convergent Charging rating request for real-time usage event processing",
  "fields": [
    { "name": "accountId", "type": "string", "required": true, "description": "Customer account identifier to charge" },
    { "name": "serviceType", "type": "string", "required": true, "description": "Type of service being charged (e.g., DATA, VOICE, SMS)" },
    { "name": "eventId", "type": "string", "required": false, "description": "Unique event identifier for idempotency" },
    { "name": "timestamp", "type": "datetime", "required": true, "description": "Timestamp when the usage event occurred" },
    { "name": "quantity", "type": "number", "required": true, "description": "Volume of usage (bytes, seconds, units)" },
    { "name": "unit", "type": "string", "required": false, "description": "Unit of measurement (MB, seconds, calls)" },
    { "name": "direction", "type": "string", "required": false, "description": "Usage direction for telecommunications", "enum": ["INBOUND", "OUTBOUND"] },
    { "name": "destinationId", "type": "string", "required": false, "description": "Destination for routing-based pricing (e.g., phone number, zone)" },
    {
      "name": "attributes",
      "type": "object",
      "required": false,
      "description": "Additional custom attributes for pricing model evaluation",
      "fields": []
    }
  ]
}