export declare function truncateOutput(output: string, maxOutputTokens?: number): {
    text: string;
    originalTokenCount?: number;
};
export declare function formatExecResponse(args: {
    output: string;
    wallTimeSeconds: number;
    sessionId?: number;
    exitCode?: number | null;
    originalTokenCount?: number;
}): string;
export declare function elapsedSeconds(start: number): number;