import type { KeyringPair } from '@polkadot/keyring/types';
import type { Registry } from '@polkadot/types/types';
import type { SigningKey, SigningKeyResult, SigningPayloadJSON } from './SigningKey';
export declare class TestAccountSigningKey implements SigningKey {
    #private;
    constructor(registry: Registry);
    signPayload(payload: SigningPayloadJSON): Promise<SigningKeyResult>;
    addKeyringPair(...keyringPairs: (KeyringPair | ConcatArray<KeyringPair>)[]): void;
}