/**
 * Escapes HTML entities in a string.
 * @example escapeHTML('<script>alert("XSS")</script>'), // "&lt;script&gt;alert(&#34;XSS&#34;)&lt;/script&gt;"
 * @param {unknown} html The HTML string to escape.
 * @returns {string} The sanitized HTML string.
 */
export declare function escapeHTML(html: unknown): string;