/**
 * Copyright © 2025 Anonyome Labs, Inc. All rights reserved.
 *
 * SPDX-License-Identifier: Apache-2.0
 */
export declare function generateHash(cleartext: string): string;
export declare function htmlToPlaintext(html: string): string;
export declare function escapeBackslashesAndDoubleQuotes(unescaped: string): string;
/**
 * This function will insert a `\n` into the string every lineLength characters.
 * It's main use is to ensure compliance with the RFC5322 (https://www.ietf.org/rfc/rfc5322.txt#:~:text=Each%20line%20of%20characters%20MUST,998%20characters%20on%20a%20line.)
 * suggestion to have no more than 78 characters in a line, hence the default lineLength value of 78
 * @param {string} str
 * @param {number} lineLength
 * @returns {string}
 */
export declare function insertLinebreaks(str: string, lineLength?: number): string;