import type { NotificationCategories, NotificationCategory, NotificationEntry, NotificationTitlePart, NotificationZoneKey } from "./NotificationSourceProps";
import type { LiveNotificationEntry, NotificationFormatter, NotificationGroup, NotificationThread } from "./NotificationEngineProps";
export declare const OTHER_CATEGORY_KEY = "__other";
export declare const plainTitle: (parts: NotificationTitlePart[]) => string;
export declare const findCategory: (categories: NotificationCategories, key: string) => NotificationCategory | undefined;
export declare const zoneFor: (entry: Pick<NotificationEntry, "category" | "isRead" | "archived">, categories: NotificationCategories) => NotificationZoneKey;
export declare const byNewest: (a: LiveNotificationEntry, b: LiveNotificationEntry) => number;
export declare const matchesNotificationQuery: (entry: NotificationEntry, query: string) => boolean;
export declare const threadify: (items: LiveNotificationEntry[]) => NotificationThread[];
export declare const threadEntries: (thread: NotificationThread) => LiveNotificationEntry[];
export declare const threadIds: (thread: NotificationThread) => string[];
export declare const threadHasUnread: (thread: NotificationThread) => boolean;
export declare const groupByCategory: (items: LiveNotificationEntry[], categories: NotificationCategories, otherLabel: string) => NotificationGroup[];
export declare const groupByDay: (items: LiveNotificationEntry[], format: NotificationFormatter, now: number) => NotificationGroup[];