/**
 * A catalog {@link @backstage/plugin-permission-node#PermissionRule} which
 * filters for the presence of an annotation on a given entity.
 *
 * If a value is given, it filters for the annotation value, too.
 *
 * @alpha
 */
export declare const hasAnnotation: import("@backstage/plugin-permission-node").PermissionRule<import("@backstage/catalog-model").Entity, import("@backstage/plugin-catalog-node").EntitiesSearchFilter, "catalog-entity", {
    annotation: string;
    value?: string | undefined;
}>;