/**
 * Pure rendering utilities for the record age distribution grid.
 *
 * Converts RecordAgeDistribution data into table-ready row objects
 * for makeTable() rendering. Uses the same filled/empty circle metaphor
 * as availability-grid.ts for visual consistency.
 *
 * @module utils/formatting/record-age-grid
 */
import type { RecordAgeDistribution, YearRecordAge } from '../../services/ObjectDescribeService.js';
/**
 * A single row of the record age grid formatted for table display.
 *
 * Uses `Record<string, string>` for compatibility with makeTable() generics.
 * Dynamic year columns are keyed as "y{year}" (e.g., "y2026", "y2025").
 * The "oldest" key holds the oldest record date or "—".
 */
export type RecordAgeTableRow = Record<string, string>;
/**
 * Builds column definitions for the record age table.
 *
 * Returns one column per year in the distribution (newest first),
 * followed by an "Oldest" column for the oldest record date.
 *
 * @param years - The year entries from RecordAgeDistribution
 * @returns Column definitions for makeTable()
 */
export declare function buildRecordAgeColumns(years: readonly YearRecordAge[]): Array<{
    key: string;
    name: string;
}>;
/**
 * Builds table-ready row data from a RecordAgeDistribution.
 *
 * Produces a single row with filled/empty circle symbols per year
 * and the oldest record date.
 *
 * @param distribution - The record age distribution from ObjectDescribeService
 * @returns Array containing one row object suitable for makeTable()
 */
export declare function buildRecordAgeTableData(distribution: RecordAgeDistribution): RecordAgeTableRow[];