/**
 * Convert hexadecimal color code to RGBA color values
 * @param hex Hexadecimal color code (3, 6, or 8 digits with #)
 * @returns {Object} RGBA values (r, g, b as 0-255, a as 0-1)
 * @example hexaToRgba("#00000000") // { r: 0, g: 0, b: 0, a: 0 }
 * @throws {Error} If the hex code format is invalid
 */
export declare const hexaToRgba: (hex: string) => {
    r: number;
    g: number;
    b: number;
    a: number;
};