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 {
   "apiKey": 15,
   "type": "metadata",
   "name": "BrokerRegistrationChangeRecord",
   "validVersions": "0",
   "flexibleVersions": "0+",
   "fields": [
    { "name": "BrokerId", "type": "int32", "versions": "0+", "entityType": "brokerId",
      "about": "The broker id." },
    { "name": "BrokerEpoch", "type": "int64", "versions": "0+",
      "about": "The broker epoch assigned by the controller." },
    { "name": "Fenced", "type": "int8", "versions": "0+", "taggedVersions": "0+", "tag": 0,
      "about": "-1 if the broker has been unfenced, 0 if no change, 1 if the broker has been fenced." },
    { "name": "Listeners", "type": "[]Listener", "versions": "0+", "taggedVersions": "0+", "tag": 1,
      "about": "The listeners of this broker or null if there was no change.",
      "nullableVersions": "0+", "default": "null", "fields": [
        { "name": "Name", "type": "string", "versions": "0+", "mapKey": true,
          "about": "The name of the endpoint." },
        { "name": "Host", "type": "string", "versions": "0+",
          "about": "The hostname." },
        { "name": "Port", "type": "uint16", "versions": "0+",
          "about": "The port." },
        { "name": "SecurityProtocol", "type": "int16", "versions": "0+",
          "about": "The security protocol." }
      ]
   ]
 }