/**
 * Format an array of object rows into a plain-text table with aligned columns.
 *
 * @param rows - Array of records representing table rows; each object's properties are read using `keys`.
 * @param headers - Column header titles in the order to appear in the table.
 * @param keys - Object property keys that determine column order and which values to include from each row.
 * @returns A single string containing the table (header, separator, and body lines) or an empty string if `rows` is empty.
 */
export declare function formatTable(rows: Array<Record<string, unknown>>, headers: string[], keys: string[]): string;