How to use the bootstrap.run function in bootstrap

function installAndRun(installPath, xpiPath) {
  // TODO: If the XPI is corrupted, Firefox will crash. Figure out how
  // to bail gracefully.
  if (file.exists(installPath))
    shellUtils.removeDirRecursive(installPath);
  shellUtils.makeDir(installPath);
  var zip = require("zip-file").open(xpiPath);
  zip.extractAll(installPath);
  var manifestFile = file.join(installPath, "harness-options.json");
  var manifest = JSON.parse(file.read(manifestFile));
  return {
    id: manifest.jetpackID,
    __proto__: require("bootstrap").run(manifest, installPath, print)
  };
}

function runTask(options) {
  require("bootstrap").run(options, packaging.root.path);
  processNextTask();
}