import type { ChildProcess } from 'node:child_process';
export interface NamedSessionChildOwner {
    run<T>(operation: () => Promise<T>): Promise<T>;
    assert(): void;
    assertCaptured(name: string, child: ChildProcess): void;
    ownedPid(name: string): number | null;
    checkpoint(name: string): Readonly<{
        stopFresh(): Promise<void>;
    }>;
    spawn(name: string, operation: () => ChildProcess): Promise<ChildProcess>;
    close(): Promise<void>;
}
/** Standing supervisor owns only handles returned by its own fresh spawns. */
export declare function createNamedSessionChildOwner(signal: AbortSignal): NamedSessionChildOwner;
/** Internal caller composition; no adoption from PID files or inventories. */
export declare function currentNamedSessionChildOwner(): NamedSessionChildOwner | undefined;
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