chrome/test/data/sharing/network_traversal_response.json

{
  "lifetimeDuration": "400s",
  "iceServers": [
    {
      "urls": [
        "stun:url1"
      ]
    },
    {
      "urls": [
        "turn:url2?transport=udp",
        "turn:url3?transport=tcp"
      ],
      "username": "username",
      "credential": "credential",
      "maxRateKbps": "1"
    }
  ],
  "blockStatus": "NOT_BLOCKED",
  "iceTransportPolicy": "all"
}