export interface SessionWhoamiArgs {
    harness?: string;
}
export interface SessionWhoamiResult {
    harness: string;
    sessionId: string | null;
    resolvedFrom: "pid-marker" | "env-file" | "env-var" | "explicit" | "none";
    ancestorPid: number | null;
    ancestorAlive: boolean | null;
    markerPath: string | null;
    envFilePath: string | null;
    envVarPresent: boolean;
    envVarMatches: boolean | null;
}
export declare function runSessionWhoami(args: SessionWhoamiArgs): SessionWhoamiResult;
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