/**
 * Convert rem units to pixels according to the root font size.
 * @param rem The value in rem units (string with 'rem' suffix or number).
 * @returns The equivalent value in pixels.
 */
export declare function remToPx(rem: string | number): number;
/**
 * Convert bytes to megabytes with specified decimal precision.
 * @param bytes The value in bytes to convert.
 * @param decimals The number of decimal places to round to (default is 2).
 * @returns The equivalent value in megabytes, rounded to the specified decimals.
 * @example
 * bytesToMegabytes(5123456) // returns 4.89
 * bytesToMegabytes(500000) // returns 0.48
 * bytesToMegabytes(1024 * 1024) // returns 1
 * bytesToMegabytes(5123456, 3) // returns 4.894
 */
export declare function bytesToMegabytes(bytes: number, decimals?: number): number;