import type { CacheBackend } from "./types";
export declare class SqliteCache implements CacheBackend {
    private readonly path;
    private db;
    constructor(path?: string);
    private ensureDb;
    get(key: string): Promise<unknown | null>;
    set(key: string, value: unknown, ttlSeconds?: number): Promise<void>;
    private delete;
    clear(): Promise<void>;
}
export declare const sqliteCache: SqliteCache;
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