import Decimal from 'decimal.js';
import { Reserve, ReserveLiquidity } from '../structs/klend';
import { ParsedAccount } from '../../../utils/solana';
export declare function getTotalSupply(liquidity: ReserveLiquidity): Decimal;
export declare function calculateSupplyAPR(reserve: ParsedAccount<Reserve>): number;
export declare function calculateBorrowAPR(reserve: ParsedAccount<Reserve>): number;
export declare const interpolate: (x: number, x0: number, x1: number, y0: number, y1: number) => number;
export declare const getBorrowRate: (currentUtilization: number, curve: [
    number,
    number
][]) => number;