chrome/common/extensions/docs/examples/api/fileSystemProvider/archive/example2.fake

{
  "/": {
    "isDirectory": true,
    "name": "",
    "size": 0,
    "modificationTime": "2014-06-26T08:47:11.591Z"
  },
  "/file.txt": {
    "isDirectory": false,
    "name": "file.txt",
    "size": 9,
    "modificationTime": "2014-06-26T08:47:11.591Z",
    "contents": "It works!"
  }
}