/**
 * Processes HTML content to make it more accessible for screen readers by:
 * 1. Removing HTML tags while preserving their text content
 * 2. Converting HTML entities to their text equivalents
 * 3. Normalizing whitespace
 *
 * @param htmlContent - The HTML content to be processed for screen readers
 * @returns Clean, readable text suitable for screen readers
 *
 * @example
 * // Input: "<p>Hello <b>World</b> &amp; Universe!</p>"
 * // Output: "Hello World and Universe!"
 */
export declare const processHtmlForScreenReader: (htmlContent: string) => string;