{
  "apiKey": N,
  "type": "request",
  "name": "AlterBrokerPropertyRequest",
  "validVersions": "0",
  "flexibleVersions": "0+",
  "fields": [
    { "name": "BrokerProperties", "type": "[]BrokerProperty",
      "versions": "0+", "fields": [
      { "name": "Key", "type": "string", "versions": "0+",
        "about": "The property key name." },
      ]
      }
    ]
    }
  ]
}