import BigNumber from 'bignumber.js';
import { UseRouteResponse } from './use-route';
export declare const getLowInfoWarningPrompt: () => string;
export declare const getCautionWarningText: (isPriceImpactNaN: boolean) => "Price impact cannot be calculated for this swap pair. Proceed anyway" | "USD value for the selected token(s) cannot be calculated";
export declare const getConfirmationWarningText: (priceImpact: number) => string;
export type UsePriceImpactReturnType = {
    warning: undefined;
} | {
    warning: 'NONE';
} | {
    warning: 'LOW_INFO_WARNING';
} | {
    warning: 'CAUTION_WARNING' | 'REQUEST_CONFIRMATION';
    priceImpactPercentage: BigNumber;
    usdAmountIn: BigNumber;
    usdAmountOut: BigNumber;
};
export declare const usePriceImpact: (route: UseRouteResponse | undefined) => {
    readonly warning: undefined;
    readonly priceImpactPercentage?: undefined;
    readonly usdAmountIn?: undefined;
    readonly usdAmountOut?: undefined;
} | {
    readonly warning: "LOW_INFO_WARNING";
    readonly priceImpactPercentage?: undefined;
    readonly usdAmountIn?: undefined;
    readonly usdAmountOut?: undefined;
} | {
    readonly warning: "CAUTION_WARNING";
    readonly priceImpactPercentage: BigNumber;
    readonly usdAmountIn?: undefined;
    readonly usdAmountOut?: undefined;
} | {
    readonly warning: "REQUEST_CONFIRMATION";
    readonly priceImpactPercentage: BigNumber;
    readonly usdAmountIn: BigNumber;
    readonly usdAmountOut: BigNumber;
} | {
    readonly warning: "NONE";
    readonly priceImpactPercentage?: undefined;
    readonly usdAmountIn?: undefined;
    readonly usdAmountOut?: undefined;
};