code: public Decision addDecision(String id, Date date, String title, DecisionStatus status, Format format, String content) {
          return addDecision(null, id, date, title, status, format, content);
      }
docs: Adds a new decision to this workspace.
  
  @param id        the ID of the decision
  @param date      the date of the decision
  @param title     the title of the decision
  @param status    the status of the decision
  @param format    the format of the decision content
  @param content   the content of the decision
  @return  a Decision object