StructuredLogRecord
constructor(timestamp: Long, level: String, source: String, message: String, throwable: String? = null, traceId: String? = null, spanId: String? = null, pluginId: String? = null, service: String? = null, cluster: String? = null, instance: String? = null, payload: JsonElement? = null, meta: JsonElement? = null, attributes: Map<String, String> = emptyMap())(source)