/**
 * Calculate the CRC32 checksum for a given `Uint8Array`
 *
 * @param array The `Uint8Array` to use for checksum calculation
 * @param offset The offset in the array to start calculating from
 * @param length The number of bytes to use for calculation, if _negative_
 *               this be considered to be relative to the end of the array.
 * */
export declare function crc32(array: Uint8Array, offset?: number, length?: number): number;