/**
 * Helper function to calculate total width for multiple strings using font weight 400 map.
 * Includes validation for finite values and fallback to 0 for invalid calculations.
 */
export declare const calculateTotalWidth400: (...texts: (string | undefined | null)[]) => number;
/**
 * Helper function to calculate total width for multiple strings using font weight 500 map.
 * Includes validation for finite values and fallback to 0 for invalid calculations.
 */
export declare const calculateTotalWidth500: (...texts: (string | undefined | null)[]) => number;