import { JsonRpcProvider, Wallet, type TransactionRequest } from 'ethers';
export declare function getChainId(provider: JsonRpcProvider, configChainId?: number): Promise<number>;
export declare function signTransactionsBatch(wallet: Wallet, transactions: TransactionRequest[]): Promise<string[]>;
export declare function signTransactionsBatchMultiWallet(wallets: Wallet[], transactions: TransactionRequest[]): Promise<string[]>;
export declare function validateSignedTransactions(signedTxs: string[]): boolean;