code: function (path, pathname, hash, uuid) {
      this.actionQueue.push(this.webdriverClient.screenshot.bind(this.webdriverClient));
      this.actionQueue.push(this._screenshotCb.bind(this, path, pathname, hash, uuid));
      return this;
    }
docs: Makes an screenshot of the current page
  
  @method screenshot
  @param {string} path Root directory path
  @param {string} pathname Pathname of the screenshot path
  @param {string} hash Unique hash of that fn call
  @param {string} uuid Unique hash of that fn call
  @chainable