def get_class(class_entry)
      result = nil
      for path in class_entry.path_names
        path = RiWriter.class_desc_path(path, class_entry)
        desc = File.open(path) {|f| RI::Description.deserialize(f) }
        if result
          result.merge_in(desc)
        else
          result = desc
        end
      end
      result
    end
def get_class(class_entry)
      result = nil
      for path in class_entry.path_names
        path = RiWriter.class_desc_path(path, class_entry)
        desc = File.open(path) {|f| RI::Description.deserialize(f) }
        if result
          result.merge_in(desc)
        else
          result = desc
        end
      end
      result
    end
Return a class description