export interface ActivitySession {
    /** The child argv, with `--session <file>` in place of `--no-session` when a file was allocated here. */
    readonly args: string[];
    /** The session file being watched. */
    readonly path: string;
    /** A marker that changes whenever pi appended to the file; `undefined` until the file exists. */
    probe(): Promise<string | undefined>;
    /** Remove the temporary file, if this run allocated one. Never removes a retention target. */
    dispose(): Promise<void>;
}
export declare function activitySessionFor(planArgs: string[], executionId: string): Promise<ActivitySession>;
//# sourceMappingURL=activity-session.d.ts.map