import { SWRConfiguration, SWRResponse } from 'swr';
export type ConversionRateResponse = {
    success: false;
    error: string;
} | {
    success: true;
    conversionRate: number;
};
export type UseFiatConversionRateReturnType = SWRResponse<ConversionRateResponse>;
/**
 * React hook to get the conversion rate for a pair of tokens
 */
export declare const useFiatConversionRateSWR: (from: string | undefined, to: string | undefined, enabled?: boolean, options?: SWRConfiguration) => UseFiatConversionRateReturnType;