import type { SnapshotResponse } from "./types";
export interface ReadAuthBrokerSnapshotCacheOptions {
    path: string;
    token: string;
    url: string;
    ttlMs: number;
    /** Override clock for deterministic tests. */
    now?: () => number;
}
export interface WriteAuthBrokerSnapshotCacheOptions {
    path: string;
    token: string;
    url: string;
    snapshot: SnapshotResponse;
}
export declare function readAuthBrokerSnapshotCache(opts: ReadAuthBrokerSnapshotCacheOptions): Promise<SnapshotResponse | null>;
export declare function writeAuthBrokerSnapshotCache(opts: WriteAuthBrokerSnapshotCacheOptions): Promise<void>;