export interface PythonTranscriptRecord {
    timestamp: string;
    code: string;
    output: string;
    exitCode: number | null;
    cancelled: boolean;
    truncated: boolean;
}
export interface PythonKernelTranscript {
    readonly dir: string;
    readonly kernelInstanceId: string;
    append(record: PythonTranscriptRecord): Promise<void>;
}
export declare function openPythonKernelTranscript(input: {
    cwd: string;
    sessionId: string;
    kernelInstanceId: string;
    now?: Date;
}): PythonKernelTranscript;