import { NDKPrivateKeySigner, NDKUser } from '@nostr-dev-kit/ndk';
export declare class PrivateKeySigner extends NDKPrivateKeySigner {
    private nip44;
    private _pubkey;
    constructor(privateKey: string);
    get pubkey(): string;
    encryptNip44(recipient: NDKUser, value: string): Promise<string>;
    decryptNip44(sender: NDKUser, value: string): Promise<string>;
}