/**
 * Format a duration in milliseconds as a human-readable string.
 *
 * - Sub-minute durations render in seconds (e.g. `1.234s`).
 * - Sub-hour durations render as `MmS.SSSs`.
 * - Otherwise as `HhMmS.SSSs`.
 *
 * @param ms - The duration in milliseconds.
 * @returns The formatted string.
 */
declare const fmtTime: (ms: number) => string;
/**
 * Format a byte count using binary (1024-based) units.
 *
 * @param n - The number of bytes.
 * @returns The formatted string (e.g. `1.5MB`).
 */
declare const fmtBytes: (n: number) => string;
/**
 * Format a distance in metres as a human-readable string, picking the most
 * appropriate unit (mm/cm/m/km).
 *
 * @param m - The distance in metres.
 * @returns The formatted string.
 */
declare const fmtDistance: (m: number) => string;
/**
 * Format a count using SI suffixes (K/M/B/T) above 1000.
 *
 * @param n - The count to format.
 * @returns The formatted string.
 */
declare const fmtCount: (n: number) => string;
export { fmtBytes, fmtCount, fmtDistance, fmtTime };