/**
 * Process ancestor walk logic for session PID markers.
 * Extracted from sessionMarker.ts for max-lines compliance.
 */
export interface AncestorInfo {
    pid: number;
    startTime?: string;
}
export declare function __resetCacheForTests(): void;
export declare function __setAncestorResolverForTests(fn: ((processNames: string[]) => AncestorInfo | undefined) | undefined): void;
declare function parseHarnessPidOverride(): number | undefined;
export declare function findHarnessAncestorPid(processNames: string[]): AncestorInfo | undefined;
export { parseHarnessPidOverride };
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