code: function WebpackYAMPlugin({manifestPath, outputRoot}) {
      if (!manifestPath) throw new Error('WebpackYAMPlugin: no `manifestPath` option provided. It should be an absolute path to a file');
      if (!outputRoot) throw new Error('WebpackYAMPlugin: no `outputRoot` option provided. It should be an absolute path that your assets are served from');
  
      this.manifestPath = manifestPath;
      this.outputRoot = outputRoot;
  }
docs: /*
  Webpack plugin that emits a manifest file in the following format
  
  {
  status: "built" || "building" || "errors",
  errors: null || [
  "<error text>",
  ...
  ],
  files: null || {
  <entry>: [
  'rel/path/to/file.ext',
  ...
  ],
  ...
  }
  }