type CacheEntry<T> = {
    value: T;
    expiresAt?: number;
};
interface CacheStore<T> {
    get(key: string): Promise<CacheEntry<T> | null>;
    set(key: string, value: CacheEntry<T>): Promise<void>;
    all(): Promise<Record<string, CacheEntry<T>>>;
    delete(key: string): Promise<void>;
}
export declare class MemoryStore<T> implements CacheStore<T> {
    private store;
    get(key: string): Promise<CacheEntry<T> | null>;
    set(key: string, value: CacheEntry<T>): Promise<void>;
    all(): Promise<Record<string, CacheEntry<T>>>;
    delete(key: string): Promise<void>;
}
export declare class LocalStorageStore<T> implements CacheStore<T> {
    get(key: string): Promise<CacheEntry<T> | null>;
    set(key: string, value: CacheEntry<T>): Promise<void>;
    all(): Promise<Record<string, CacheEntry<T>>>;
    delete(key: string): Promise<void>;
}
export declare class ChromeStore<T> implements CacheStore<T> {
    get(key: string): Promise<CacheEntry<T> | null>;
    set(key: string, value: CacheEntry<T>): Promise<void>;
    all(): Promise<Record<string, CacheEntry<T>>>;
    delete(key: string): Promise<void>;
}
export declare class Cache<T> {
    private store;
    private didCheckExpired;
    constructor(store: CacheStore<T>);
    get(key: string): Promise<T | null>;
    set(key: string, value: T, ttl?: number): Promise<void>;
    delete(key: string): Promise<void>;
    private checkExpired;
}
export {};