def export_manifests
      @export_manifests ||= Array(@exports).map do |(name, block)|
        Decidim::Components::ExportManifest.new(name, self).tap do |manifest|
          block.call(manifest)
        end
      end
    end
def export_manifests
      @export_manifests ||= Array(@exports).map do |(name, block)|
        Decidim::Components::ExportManifest.new(name, self).tap do |manifest|
          block.call(manifest)
        end
      end
    end
Pubic: Returns a collection of previously registered export manifests
 for this component.

 Returns an Array<Decidim::Components::ExportManifest>.