import type { ConversationEngineHost } from '../../../../../core/chat/engine/types.js';
import type { ConversationEngineHostAdapterResult } from './types.js';
/**
 * Normalizes host-facing engine callbacks into turn-runtime ports.
 */
export declare class ConversationEngineHostNormalizer {
    static normalize(host?: ConversationEngineHost): ConversationEngineHostAdapterResult;
    private static isConversationActivity;
}
//# sourceMappingURL=host-normalizer.d.ts.map