import * as t from './types.d';
export type WrappedState<S = unknown> = {
    /**
    * @description Identify this bit of state by who it belongs to
    */
    id: t.IDString;
    /**
    * @description Every state has a timestamp to represent when it was last updated.
    * If there's a newer timestamp than the one we have on file, we check
    * its veracity and save it.
    */
    timestamp: t.TimeStamp;
    /**
    * @description Every state has to be signed by the user. This is how we verify
    * the veracity of each state.
    */
    signature: t.HexString;
    /**
    * @description This will be hashed and included in signature to ensure the veracity
    * of someone's data.
    */
    state: S;
    /**
    * @description To ensure veracity of state
    */
    publicKey: t.PublicKey;
};
declare const buildStorageShim: () => Storage;
export declare class LocalDB {
    keyPrefix: string;
    localStorage: ReturnType<typeof buildStorageShim>;
    appId: t.GUID;
    constructor(appId: t.GUID);
    set(val: WrappedState, address: t.IDString): void;
    get(address: t.IDString): WrappedState | undefined;
    getAll(): WrappedState[];
    remove(address: t.IDString): void;
    clear(): void;
    buildKey(address: t.IDString): string;
    private getByKey;
}
export {};