val loggingFileSystem: FileSystem =
      object : ForwardingFileSystem(fileSystem) {
        override fun onPathParameter(
          path: Path,
          functionName: String,
          parameterName: String,
        ): Path {
          events.add("$functionName:$path")
          return path
        }

        override fun onPathResult(
          path: Path,
          functionName: String,