{
  "wire": "uniques:765|s",
  "parsed": {
    "bucket": "uniques",
    "setValue": "765",
    "type": "set",
    "wireType": "s"
  },
  "notes": "Set observation — `765` is added to the bucket's set. On flush the daemon emits the cardinality (number of distinct members observed) as `stats.sets.uniques.count`. Common usage: counting unique users, IPs, or request IDs."
}