API cluster stats

{
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   },
   "cluster_uuid": "YjAvIhsCQ9CbjWZb2qJw3Q",
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   "timestamp": 1459427693515,
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      },
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         "stored_fields_memory_in_bytes": 1248,
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        "built_in_analyzers": []
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      "os": {
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         "names": [
            {
               "name": "Mac OS X",
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            }
         ],
         "pretty_names": [
            {
               "pretty_name": "Mac OS X",
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         ],
         "architectures": [
            {
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         ],
         "mem" : {
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      "jvm": {
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          "classname": "org.elasticsearch.plugin.analysis.icu.AnalysisICUPlugin",
          "has_native_controller": false
        },
        ...
      ],
      "ingest": {
        "number_of_pipelines" : 1,
        "processor_stats": {
          ...
        }
      },
      "network_types": {
        ...
      },
      "discovery_types": {
        ...
      },
      "packaging_types": [
        {
          ...
        }
      ]
   }
}