import algosdk, { TransactionWithSigner } from 'algosdk';
import type { SwapMiddleware, SwapContext, FetchQuoteParams } from '@txnlab/deflex';
import { type AssetInformation } from './decoders';
export interface FirstStageMiddlewareConfig {
    appId: number | bigint;
}
export declare class FirstStageMiddleware implements SwapMiddleware {
    readonly name = "FirstStageDeflex";
    readonly version = "1.0.0";
    private readonly appId;
    private readonly algod;
    private readonly fsClientCache;
    constructor(algodClient: algosdk.Algodv2);
    private getClient;
    shouldApply(params: {
        fromASAID: bigint;
        toASAID: bigint;
    }): Promise<boolean>;
    adjustQuoteParams(params: FetchQuoteParams): Promise<FetchQuoteParams>;
    beforeSwap(context: SwapContext): Promise<TransactionWithSigner[]>;
    afterSwap(context: SwapContext): Promise<TransactionWithSigner[]>;
    private isOptedIn;
    getAssetInfo(assetId: bigint): Promise<AssetInformation | null>;
    private getUserBalance;
    private isFreezeEligible;
    private isFrozen;
    private computeContractTax;
}