export interface LiveDurationProps {
    /** Epoch-ms when the job entered `running`. Drives the live elapsed counter. */
    startedAt?: number;
    /** Final duration in ms. Once set, takes precedence over the live elapsed counter. */
    finalMs?: number;
    /**
     * When true, the component keeps ticking. When false, rendering stops
     * updating (static snapshot of whatever `finalMs` / last elapsed value is).
     */
    active: boolean;
    /** Optional ink text color (inherited from the row). */
    color?: string;
}
/**
 * Renders `(12.3s)` — either the final `durationMs` from metadata (if set) or
 * a live-ticking elapsed counter computed from `startedAt`. The timer stays
 * visible in every state so users see how long each agent took / is taking.
 */
export declare function LiveDuration({ startedAt, finalMs, active, color }: LiveDurationProps): import("react").JSX.Element | null;
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