export interface JsonStoreOptions<T> {
    empty: () => T;
    parse: (value: unknown) => T;
    path: () => string;
    /**
     * The write root the paths of this store belong to.
     *
     * Must come from the same authority as `path()`. A store told its home
     * explicitly - `new AgentHealthStore({ animaHome })` - derives `path()` from
     * that home, so its write root is that home, not whatever `resolveAnimaHome()`
     * reports at write time. Take the two from different authorities and the guard
     * protects a root the target does not live under: the target then reads as
     * "outside the root" and is recursively recreated, which is the whole defect.
     *
     * Defaults to the ambient root, captured once per path in `file()`.
     */
    writeRoot?: () => string;
}
export declare class JsonStore<T> {
    private readonly options;
    private readonly validated;
    private readonly files;
    constructor(options: JsonStoreOptions<T>);
    read(): Promise<T>;
    write(value: T): Promise<void>;
    update(op: (current: T) => T | Promise<T>): Promise<T>;
    private file;
    private parse;
}
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