import type { ChatMessage } from '../types/ChatMessage';
import type { ChatParticipant } from '../types/ChatParticipant';
/**
 * Resolves the human-readable sender label shown in reply previews.
 *
 * @private helper for chat reply previews
 */
export declare function resolveChatMessageReplySenderLabel(options: {
    sender: ChatMessage['sender'];
    participants?: ReadonlyArray<ChatParticipant>;
    fallbackLabel?: string;
}): string;