import { AthenaRecord, InboxItem, NotificationEvent, NotificationPreference, UserDocumentRecord, WorkspaceActivitySnapshot, WorkspaceFeatureToggles, WorkspacePreferenceSnapshot } from './types.js';
export { formatDateTime } from '../../../lib/format-date-time.js';
export declare function normalizeNotificationEvents(value: unknown): NotificationEvent[];
export declare function normalizeInboxItems(value: unknown): InboxItem[];
export declare function getDocumentOpenUrl(document: UserDocumentRecord): string | undefined;
export declare function normalizeDocuments(value: unknown): UserDocumentRecord[];
export declare function formatBytes(value: number): string;
export declare function getRecordString(record: AthenaRecord, keys: readonly string[], fallback?: string): string;
export declare function buildDefaultNotificationPreferences(): NotificationPreference[];
export declare function buildDefaultFeatureToggles(): WorkspaceFeatureToggles;
export declare function createWorkspacePreferenceSnapshot(featureToggles: WorkspaceFeatureToggles, notificationPreferences: NotificationPreference[]): WorkspacePreferenceSnapshot;
export declare function createWorkspaceActivitySnapshot(notifications: NotificationEvent[], inboxItems: InboxItem[], documents: UserDocumentRecord[]): WorkspaceActivitySnapshot;
export declare function getWorkspacePreferenceSnapshotFromSessionUser(user: unknown): WorkspacePreferenceSnapshot | null;
export declare function getWorkspaceActivitySnapshotFromSessionUser(user: unknown): WorkspaceActivitySnapshot | null;
export declare function readWorkspacePreferenceSnapshot(userId: string): WorkspacePreferenceSnapshot | null;
export declare function writeWorkspacePreferenceSnapshot(userId: string, snapshot: WorkspacePreferenceSnapshot): void;
export declare function readWorkspaceActivitySnapshot(userId: string): WorkspaceActivitySnapshot | null;
export declare function writeWorkspaceActivitySnapshot(userId: string, snapshot: WorkspaceActivitySnapshot): void;