/**
 * Calculates the Annual Percentage Yield (APY) based on the Annual Percentage Rate (APR).
 * @param apr The Annual Percentage Rate.
 * @param compoundFrequency The number of times the interest is compounded in a year. Default is 365.
 * @returns The Annual Percentage Yield (APY).
 */
export declare function aprToApy(apr: number, compoundFrequency?: number): number;
/**
 * Calculates the Annual Percentage Rate (APR) based on the Annual Percentage Yield (APY).
 * @param apy The Annual Percentage Yield.
 * @param compoundFrequency The number of times the interest is compounded in a year. Default is 365.
 * @returns The Annual Percentage Rate (APR).
 */
export declare function apyToApr(apy: number, compoundFrequency?: number): number;
/**
 * Represents a yield information with APR and APY (as fraction).
 * If negative, it means that it costs money to hold the asset.
 */
export type Yield = {
    /**
     * APR (Annual Percentage Rate) as fraction.
     * 0.25 means 25% APR
     * -0.25 means -25% APR
     */
    apr: number;
    /**
     * APY (Annual Percentage Yield) as fraction.
     * 0.28 means 28% APY
     * -0.28 means -28% APR
     */
    apy: number;
    /**
     * (Optional) The address of the token this yield is associated with.
     */
    address?: string;
};
/**
 * Creates a Yield object from the given APR.
 * @param apr The Annual Percentage Rate.
 * @returns The Yield object with the calculated APY.
 */
export declare const yieldFromApr: (apr: number) => Yield;
/**
 * Creates a Yield object from the given APY.
 * @param apy The Annual Percentage Yield.
 * @returns The Yield object with the calculated APR.
 */
export declare const yieldFromApy: (apy: number) => Yield;
export type YieldElement = {
    apy: number;
    value: number;
};