export interface SealingLatchStore {
    load(boatId: string | undefined): boolean;
    set(boatId: string): Promise<void>;
    clear(): Promise<void>;
}
export declare class SealingLatch implements SealingLatchStore {
    private readonly file;
    private writeChain;
    constructor(dataDir: string);
    load(boatId: string | undefined): boolean;
    set(boatId: string): Promise<void>;
    clear(): Promise<void>;
    flush(): Promise<void>;
    private write;
}