private val fileSystem = FileSystem.SYSTEM

  private fun readStory(source: BufferedSource): Story {
    return STORY_JSON_ADAPTER.fromJson(source)!!
  }

  private fun readStory(file: Path): Story {
    fileSystem.read(file) {
      return readStory(this)
    }
  }

  /** Iterate through the hpack-test-case resources, only picking stories for the current draft.  */