import { keyStores, Near } from 'near-api-js';
import * as NearAPI from 'near-api-js';
export interface ICalimeroConfig {
    shardId: string;
    calimeroUrl: string;
    rpcEndpoint: string;
    walletNetworkId: string;
}
export declare class CalimeroWalletUtils {
    static init(config: ICalimeroConfig): CalimeroWalletUtils;
    private config;
    private constructor();
    fetchChallenge(): Promise<any>;
    signatureForChallenge(accountId: string, signer: NearAPI.Signer, challenge: string): Promise<{
        challenge: string;
        signature: string;
        publicKey: string;
        accountId: string;
    }>;
    generatePrivateShardXSignature(accountId: string, signer: NearAPI.Signer): Promise<string>;
    syncPrivateShardAccount(accountId: string, signer: NearAPI.Signer): Promise<void>;
    getCalimeroConnection(keyStore: keyStores.KeyStore, xSignature: string): Promise<Near>;
    private syncAccount;
}