code: public boolean hasMembersToDocument() {
          if (classDoc instanceof AnnotationTypeDoc) {
              return ((AnnotationTypeDoc) classDoc).elements().length > 0;
          }
          for (int i = 0; i < VisibleMemberMap.NUM_MEMBER_TYPES; i++) {
              VisibleMemberMap members = visibleMemberMaps[i];
              if (!members.noVisibleMembers()) {
                  return true;
              }
          }
          return false;
      }
docs: Return true it there are any members to summarize.
  
  @return true if there are any members to summarize.