import { PrivateKey, PublicAddress } from "../blockchain/ed_keys";
import { Signature } from "../blockchain/signature";
export declare class Keypair {
    public_key: PublicAddress;
    private_key: PrivateKey;
    constructor(public_key: PublicAddress, private_key: PrivateKey);
    static generate(private_key?: Uint8Array | string): Promise<Keypair>;
    sign(message: Uint8Array): Promise<Signature>;
}