/**
 * Splits a value string into its numeric and unit parts.
 *
 * @param value - The string to split (e.g., "10px", "1.5em")
 * @returns An object with `num` (the numeric part) and `unit` (the unit suffix, or empty string)
 */
export declare function splitUnit(value: string): {
    num: string;
    unit: string;
};