code: public ItemRequest<Story> update(String story) {
      
          String path = String.format("/stories/%s", story);
          return new ItemRequest<Story>(this, Story.class, path, "PUT");
      }
docs: Updates the story and returns the full record for the updated story.
  Only comment stories can have their text updated, and only comment stories and
  attachment stories can be pinned. Only one of `text` and `html_text` can be specified.
  
  @param  story Globally unique identifier for the story.
  @return Request object