code: function inlineAssets(rootFolder, currentFile) {
      return function($) {
          return Promise()
  
          // Resolving images and fetching external images should be
          // done before svg conversion
          .then(resolveImages.bind(null, currentFile, $))
          .then(fetchRemoteImages.bind(null, rootFolder, currentFile, $))
  
          .then(svgToImg.bind(null, rootFolder, currentFile, $))
          .then(svgToPng.bind(null, rootFolder, currentFile, $))
          .then(inlinePng.bind(null, rootFolder, currentFile, $));
      };
  }
docs: Inline all assets in a page
  
  @param {String} rootFolder