import type { BackendType } from './backends/types.js';
import type { HistoryMessage } from './history-message-transform.js';
export type SessionExportFormat = 'markdown' | 'html';
export interface SessionExportMetadata {
    sessionId: string;
    backend: BackendType;
    title?: string;
    workDir?: string;
    lastModified?: number;
    exportedAt?: string;
}
export interface SessionExportResult {
    format: SessionExportFormat;
    filename: string;
    contentType: string;
    content: string;
}
export declare function isSessionExportFormat(value: unknown): value is SessionExportFormat;
export declare function formatSessionExport(metadata: SessionExportMetadata, messages: HistoryMessage[], format: SessionExportFormat): SessionExportResult;