json_schema: {
      "description": "An instance of <a href=\"#playlist-track\">a track.</a>",
      "properties": {
          "author": {
              "description": "The author of the track.",
              "example": "John Doo",
              "title": "Author",
              "type": "string"
          },
          "loop": {
              "default": false,
              "description": "This sets whether or not the track repeats after a script tells it to play.",
              "title": "Loop",
              "type": "boolean"
          },
          "name": {
              "description": "The name of the track.",
              "example": "My awesome song",
              "title": "Name",
              "type": "string"
          },
          "uid": {
              "description": "The UID of the track.",
              "example": "track-0",
              "title": "UID",
              "type": "string"
          },
          "url": {
              "description": "The file URL of the track.",
              "example": "audio/track-0.mp3",
              "title": "URL",
              "type": "string"
          }
      },
      "required": [
          "uid",
          "url"
      ],
      "title": "AudioTrackConfig",
      "type": "object"
  }