import type { ConversationDetail } from "./chatgpt-client.js";
import { type ConversationCompletionStatus, type ConversationExperience } from "./conversation-experience.js";
import { type ConversationAssetReference, type MessageRichContent } from "./rich-content.js";
export type TranscriptMessage = {
    role: string;
    content: string;
    content_type: string | null;
    created_at: string | null;
    message_id: string | null;
    rich_content?: MessageRichContent;
};
export type ActiveTranscript = {
    conversation_id: string;
    title: string;
    time_zone: string;
    updated_at: string | null;
    created_at: string | null;
    branch: "active";
    experience: ConversationExperience;
    completion_status: ConversationCompletionStatus;
    async_status: string | null;
    message_count: number;
    truncated: boolean;
    messages: TranscriptMessage[];
};
/**
 * Walk from current_node up via parent links, then reverse → chronological active branch.
 * Includes visible user / assistant messages containing text or supported rich content.
 */
export declare function activeBranchTranscript(detail: ConversationDetail, options?: {
    maxMessages?: number;
    timeZone?: string;
}): ActiveTranscript;
export declare function findActiveBranchAsset(detail: ConversationDetail, assetId: string): ConversationAssetReference | null;