/**
 * @fileoverview Emoji processor that converts emojis to inline SVG images
 * @module utils/EmojiProcessor
 *
 * This module replaces emoji characters with inline SVG images from Twemoji,
 * ensuring consistent emoji rendering across all platforms without requiring
 * external fonts or CDN resources.
 */
/**
 * CSS styles for emoji images embedded in the document
 */
export declare const emojiStyles = "\n/* Inline Emoji Styling */\n.emoji {\n  height: 1.2em;\n  width: 1.2em;\n  margin: 0 0.05em 0 0.1em;\n  vertical-align: -0.2em;\n  display: inline-block;\n}\n\n.emoji svg {\n  height: 100%;\n  width: 100%;\n}\n";
/**
 * Process HTML content and replace emojis with inline SVG images
 * @param html - HTML content with emoji characters
 * @returns HTML content with emojis replaced by inline SVG spans
 */
export declare function processEmojis(html: string): Promise<string>;
/**
 * Check if a string contains any emoji characters
 * @param text - Text to check
 * @returns True if text contains emojis
 */
export declare function containsEmojis(text: string): boolean;
/**
 * Clear the SVG cache
 */
export declare function clearEmojiCache(): void;
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