import { type Hash } from "viem";
import type { AssembleResponseTxn } from "../types.js";
import type { WalletService } from "./wallet.js";
export declare class ExecuteSwapService {
    private readonly NATIVE_TOKEN;
    private readonly walletService;
    constructor(walletService: WalletService);
    private requiresAllowance;
    checkAndSetAllowance(tokenAddress: string, amount: bigint, spenderAddress: string): Promise<boolean>;
    execute(txn: AssembleResponseTxn): Promise<Hash>;
    formatWithConfirmation(txn: AssembleResponseTxn, hash: Hash): Promise<string>;
}