/**
 * Apply formatting to the numeric input using the prepared format parts
 * @param numbers The numeric input string
 * @param formatParts The format parts prepared by parseFormat
 * @returns The formatted string
 *
 * @example
 * ```tsx
 * const formatted = applyFormatFromParts("12345678", [{ length: 2, separator: ' / ' }, { length: 2, separator: ' / ' }, { length: 4, separator: '' }]);
 * console.log(formatted); // "12 / 34 / 5678"
 * ```
 */
export default function applyFormatFromParts(numbers: string, formatParts: {
    length: number;
    separator: string;
}[]): string;