uniIM/node_modules/systemjs/dist/extras/use-default.js

(function () {

  /*
   * Interop for AMD modules to return the direct AMD binding instead of a
   * `{ default: amdModule }` object from `System.import`
   * 
   * Note: This extra is deprecated and will be removed in the next major.
   */
  (function (global) {
    var systemJSPrototype = global.System.constructor.prototype;
    var originalImport = systemJSPrototype.import;

    systemJSPrototype.import = function () {
      return originalImport.apply(this, arguments).then(function (ns) {
        return ns.__useDefault ? ns.default : ns;
      });
    };
  })(typeof self !== 'undefined' ? self : global);

})();