/**
 * Shared HTML utilities for entity decoding, escaping, and Teams markup.
 *
 * Used by both the VTT transcript parser, the action formatters,
 * and the quote/inline-reply builder.
 */
/** Decode common HTML entities to plain text. */
export declare function decodeHtmlEntities(text: string): string;
/** Escape characters that are special in HTML to prevent injection. */
export declare function escapeHtml(text: string): string;
/**
 * Build a Teams inline-quote blockquote HTML element.
 *
 * Teams represents inline quotes using a `<blockquote>` with Skype schema
 * microdata attributes. This is the format Teams Desktop/Web produces when
 * a user right-clicks a message and selects "Reply".
 *
 * @param messageId  - The ID of the quoted message (OriginalArrivalTime).
 * @param senderMri  - Full MRI of the quoted message sender (e.g. "8:orgid:{uuid}").
 * @param senderDisplayName - Display name of the quoted message sender.
 * @param previewText - Plain-text preview of the quoted message content.
 */
export declare function buildQuoteHtml(options: {
    messageId: string;
    senderMri: string;
    senderDisplayName: string;
    previewText: string;
}): string;
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