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{
  "apiKey": TBD,
  "type": "response",
  "name": "DescribeClusterResponse",
  "validVersions": "0",
  "flexibleVersions": "0+",
  "fields": [
    { "name": "ThrottleTimeMs", "type": "int32", "versions": "0+",
      "about": "The duration in milliseconds for which the request was throttled due to a quota violation, or zero if the request did not violate any quota." },
    { "name": "ClusterId", "type": "string", "nullableVersions": "0+", "versions": "0+", "default": "null",
      "about": "The cluster ID that responding broker belongs to." },
    { "name": "ControllerId", "type": "int32", "versions": "0+", "default": "-1", "entityType": "brokerId",
      "about": "The ID of the controller broker." },   
    { "name": "Brokers", "type": "[]DescribeClusterBroker", "versions": "0+",
      "about": "Each broker in the response.", "fields": [
      { "name": "NodeId", "type": "int32", "versions": "0+", "mapKey": true, "entityType": "brokerId",
        "about": "The broker ID." },
      { "name": "Host", "type": "string", "versions": "0+",
        "about": "The broker hostname." },
      { "name": "Port", "type": "int32", "versions": "0+",
        "about": "The broker port." },
      { "name": "Rack", "type": "string", "versions": "0+", "nullableVersions": "0+", "default": "null",
        "about": "The rack of the broker, or null if it has not been assigned to a rack." }
    ]},
    { "name": "ClusterAuthorizedOperations", "type": "int32", "versions": "0+", "default": "-2147483648",
      "about": "32-bit bitfield to represent authorized operations for this cluster." }
  ]
}