import MemoryCache from "../cache/memoryCache";
import LocalStorageCache from "../cache/localstorageCache";
import IndexDBCache from "../cache/indexDBCache";
export interface CacheSetData<T = any> {
    data: T;
    exp: number;
}
export type CacheGetData<T = any> = {
    error: null;
    data: T;
} | {
    error: Error | Event;
    data: null;
};
export type CacheStorage = MemoryCache | LocalStorageCache | IndexDBCache | CacheStorageAdapter;
export declare abstract class CacheStorageAdapter {
    abstract get<T = any>(key: string): Promise<CacheGetData<T>>;
    abstract set<T = any>(key: string, value: CacheSetData<T>): Promise<boolean>;
    abstract delete(key: string): Promise<boolean>;
    abstract clear(): Promise<boolean>;
    abstract keys(): Promise<string[]>;
}
export type AdapterConstructor = new (options?: any) => CacheStorageAdapter;