{
  "apiKey": 35,
  "type": "response",
  "name": "DescribeLogDirsResponse",
  // Starting in version 1, on quota violation, brokers send out responses before throttling.
  "validVersions": "0-4",
  // Version 2 is the first flexible version.
  // Version 3 adds the top-level ErrorCode field
  // Version 4 adds the TotalSpace and UsableSpace fields
  "flexibleVersions": "2+",
  "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": "ErrorCode", "type": "int16", "versions": "3+", "about": "The error code, or 0 if there was no error." },
    { "name": "Results", "type": "[]DescribeLogDirsResult", "versions": "0+",
      "about": "The log directories.", "fields": [
      { "name": "ErrorCode", "type": "int16", "versions": "0+",
        "about": "The error code, or 0 if there was no error." },
      { "name": "LogDir", "type": "string", "versions": "0+",
        "about": "The absolute log directory path." },
      { "name": "Topics", "type": "[]DescribeLogDirsTopic", "versions": "0+",
        "about": "Each topic.", "fields": [
          ...
        ]}
      ]},
      { "name": "TotalSpaceBytesTotalBytes", "type": "int64", "versions": "4+", "ignorable": true, "default": "-1",
        "about": "The total size in bytes of the log directory."
      },
      { "name": "UsableSpaceBytesUsableBytes", "type": "int64", "versions": "4+", "ignorable": true, "default": "-1",
        "about": "The usable size in bytes of the log directory."
      }
    ]}
  ]
}