import { Notification } from '@backstage/plugin-notifications-common';
/**
 * @public
 */
export interface NotificationTemplateRenderer {
    getSubject?(notification: Notification): Promise<string>;
    getText?(notification: Notification): Promise<string>;
    getHtml?(notification: Notification): Promise<string>;
}
/**
 * @public
 */
export interface NotificationsEmailTemplateExtensionPoint {
    setTemplateRenderer(renderer: NotificationTemplateRenderer): void;
}
/**
 * @public
 */
export declare const notificationsEmailTemplateExtensionPoint: import("@backstage/backend-plugin-api").ExtensionPoint<NotificationsEmailTemplateExtensionPoint>;