sendspin-server-cpp: dialing ws://127.0.0.1:20006/sendspin for playback
sendspin-server-cpp: "sendspin-cpp-client" at 127.0.0.1:20006 connected
listener: client sendspin-cpp-client disconnected: server stopped
{
  "status": "ok",
  "implementation": "sendspin-server-cpp",
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    "type": "client/hello",
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      "device_info": {
        "product_name": "sendspin-cpp Conformance Client",
        "manufacturer": "Sendspin Conformance",
        "software_version": "0.2.0",
        "mac_address": "9e:1f:65:cd:d6:b8"
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        ],
        "buffer_capacity": 621312
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    "type": "server/activate",
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    }
  },
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    {
      "type": "group/update",
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    },
    {
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    },
    {
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    {
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}