{
  "description": "Synthetic payload fixtures. Client examples add IDs returned from this API; these are not customer captures or universal diagnostic definitions.",
  "source": {
    "kind": "manual_transcription",
    "origin": "manual_transcription",
    "label": "Synthetic documentation observations"
  },
  "source_record": {
    "origin": "manual_transcription",
    "source_order": "1",
    "excerpt": "Synthetic request: 22 F1 86. Synthetic partial response: 62 3F 06 followed by source-omitted bytes. Vehicle, ECU, supplier, transport and source clock are unknown."
  },
  "complete_message": {
    "external_record_key": "synthetic-request-001",
    "client_namespace": "example.uds-docs",
    "layer": "uds_pdu",
    "direction": "unknown",
    "extraction_quality": "transcribed",
    "source_order": "1",
    "payload": {
      "representation": "complete",
      "payload_hex": "22F186"
    }
  },
  "partial_message": {
    "external_record_key": "synthetic-partial-001",
    "client_namespace": "example.uds-docs",
    "layer": "uds_pdu",
    "direction": "unknown",
    "extraction_quality": "transcribed",
    "source_order": "2",
    "payload": {
      "representation": "partial",
      "reason": "source_omitted_bytes",
      "segments": [
        { "ordinal": 0, "offset_bytes": 0, "payload_hex": "623F06" }
      ]
    }
  },
  "unavailable_message": {
    "external_record_key": "synthetic-unavailable-001",
    "client_namespace": "example.uds-docs",
    "layer": "unknown",
    "direction": "unknown",
    "payload": {
      "representation": "unavailable",
      "reason": "The synthetic source describes a redacted observation but does not disclose its bytes."
    }
  },
  "invalid_payload": {
    "representation": "complete",
    "payload_hex": "22F18"
  }
}