export declare class VectorIndexOperationGate {
    private mutationBarrier;
    private exclusiveTail;
    private accepting;
    private readonly activeOperations;
    private readonly activeMutations;
    get stopping(): boolean;
    run<T>(task: () => Promise<T>): Promise<T>;
    runMutation<T>(task: () => Promise<T>): Promise<T>;
    runExclusive<T>(task: () => Promise<T>): Promise<T>;
    beginStop(): void;
    drain(): Promise<void>;
    reset(): void;
    assertAccepting(): void;
    private runExclusiveTask;
    private track;
}
export declare class VectorIndexPresetMutationQueue {
    private readonly gate;
    private readonly queue;
    constructor(gate: VectorIndexOperationGate);
    run<T>(presetId: string, task: () => Promise<T>): Promise<T>;
    wait(presetId: string): Promise<void>;
}