/**
 * Checks if a value is an instance of Uint8Array.
 *
 * @param value The value to check.
 * @returns True if the value is a Uint8Array, false otherwise.
 */
export declare function isBytes(value: unknown): value is Uint8Array;
/**
 * Pads a Uint8Array with zeros on the left to a specified length, or truncates
 * it from the left if it's too long.
 *
 * @param bytes The Uint8Array to pad or truncate.
 * @param length The desired length of the Uint8Array.
 * @returns The padded or truncated Uint8Array.
 */
export declare function setLengthLeft(bytes: Uint8Array, length: number): Uint8Array;
/**
 * Checks if two Uint8Arrays are equal.
 *
 * @param x The first Uint8Array to compare.
 * @param y The second Uint8Array to compare.
 * @returns True if the Uint8Arrays are equal, false otherwise.
 */
export declare function equalsBytes(x: Uint8Array, y: Uint8Array): boolean;
/**
 * Converts a UTF-8 encoded string into a byte array.
 *
 * @param utf8String The UTF-8 encoded string to convert to bytes.
 * @returns A Uint8Array representing the byte sequence of the input UTF-8 string.
 */
export declare function utf8StringToBytes(utf8String: string): Uint8Array;
export { bytesToBigInt, bytesToNumber, numberToBytes } from "./number.js";
export { bytesToHexString, hexStringToBytes } from "./hex.js";
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