code: @Deprecated
      public String request(String graphPath) throws MalformedURLException, IOException {
          return requestImpl(graphPath, new Bundle(), "GET");
      }
docs: Make a request to the Facebook Graph API without any parameters.
  <p/>
  See http://developers.facebook.com/docs/api
  <p/>
  Note that this method blocks waiting for a network response, so do not
  call it in a UI thread.
  <p/>
  This method is deprecated.  See {@link Facebook} and {@link Request} for more info.
  
  @param graphPath
  Path to resource in the Facebook graph, e.g., to fetch data
  about the currently logged authenticated user, provide "me",
  which will fetch http://graph.facebook.com/me
  @throws IOException
  @throws MalformedURLException
  @return JSON string representation of the response