import { ExtendedKeyPair, ExtendedPublicKey, KeyPair, PublicKey } from '../../../types/key';
import { Signature } from '../../../types/signature';
import { _AnyProtocol, _BaseProtocol, _OfflineProtocol } from '../../protocol';
export declare type SignMessageExtension<T extends _AnyProtocol> = T extends _OfflineProtocol<any, any, any, any, any, any, any, infer _PublicKey, any, infer _KeyPair> ? OfflineSignMessage<_PublicKey, _KeyPair> : T extends _BaseProtocol<any, any, any, any, any, any, infer _PublicKey> ? BaseSignMessage<_PublicKey> : never;
export interface BaseSignMessage<_PublicKey extends PublicKey | ExtendedPublicKey = PublicKey> {
    verifyMessageWithPublicKey(message: string, signature: Signature, publicKey: _PublicKey): Promise<boolean>;
}
export interface OfflineSignMessage<_PublicKey extends PublicKey | ExtendedPublicKey = PublicKey, _KeyPair extends KeyPair | ExtendedKeyPair = KeyPair> extends BaseSignMessage<_PublicKey> {
    signMessageWithKeyPair(message: string, keyPair: _KeyPair): Promise<Signature>;
}