code: public BoxRequestsComment.UpdateComment getUpdateRequest(String id, String newMessage) {
          BoxRequestsComment.UpdateComment request = new BoxRequestsComment.UpdateComment(id, newMessage, getCommentInfoUrl(id), mSession);
          return request;
      }
docs: Gets a request that updates a comment's information
  
  @param id    id of comment to update information on
  @param newMessage    new message for the comment
  @return      request to update a comment's information