import type { SessionMetadata } from '../session/types.js';
import type { TuiSessionItem } from './tui-backend.js';
/** Compact relative time for session picker rows (pi-style). */
export declare function formatSessionAge(updatedAtMs: number | null | undefined): string;
export declare function sessionMetadataToTuiItem(meta: SessionMetadata): TuiSessionItem;
export declare function formatSessionPickerDescription(session: TuiSessionItem): string;
