export interface SupervisorProbeResult {
    state: 'up' | 'down';
    reason: string | null;
}
export interface SupervisorSpawnResult {
    state: 'spawned' | 'failed';
    pid: number | null;
    reason: string | null;
}
export interface SupervisorGateway {
    probe(): Promise<SupervisorProbeResult>;
    spawnDetached(): Promise<SupervisorSpawnResult>;
}
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