/// <reference types="bn.js" />
import { u64 } from "@solana/spl-token";
import { BN } from "@project-serum/anchor";
export declare type SwapStep = {
    amountIn: BN;
    amountOut: BN;
    nextPrice: BN;
    feeAmount: BN;
};
export declare function computeSwapStep(amountRemaining: u64, feeRate: number, currLiquidity: BN, currSqrtPrice: BN, targetSqrtPrice: BN, amountSpecifiedIsInput: boolean, aToB: boolean): SwapStep;