def transform(what_to_transform)
      if what_to_transform == :all
        objects_to_transform = list_objects
      else
        objects_to_transform = search(what_to_transform)
      end
      objects_to_transform.each do |obj|
        if result = yield(obj)
          obj.save
        end
      end
    end
def transform(what_to_transform)
      if what_to_transform == :all
        objects_to_transform = list_objects
      else
        objects_to_transform = search(what_to_transform)
      end
      objects_to_transform.each do |obj|
        if result = yield(obj)
          obj.save
        end
      end
    end
FIXME: yard with @yield