/**
 * Converts a Uint8Array (binary data) to a base64 encoded string.
 *
 * @param {Uint8Array} uint8Array - The Uint8Array containing binary data to be encoded.
 * @returns {string} - The base64 encoded string representation of the binary data.
 */
export declare const uint8ArrayToBase64: (uint8Array: Uint8Array) => string;
/**
 * Converts a base64 encoded string to a Uint8Array (binary data).
 *
 * @param {string} base64String - The base64 encoded string to be decoded.
 * @returns {Uint8Array} - The Uint8Array representation of the decoded binary data.
 */
export declare const base64ToUint8Array: (base64String: string) => Uint8Array;