import { KlendState } from "./state";
import { Fraction } from "../../../core/math/fraction";
import { QuoteContext } from "../../types";
export declare const KLEND_SLOTS_PER_YEAR = 63072000n;
export declare const KLEND_SECONDS_PER_YEAR = 31536000n;
export declare const POINTS_IN_CURVE = 11;
export declare const POINT_SIZE = 8;
export interface AccruedKlend {
    borrowedAmountSf: bigint;
    accumulatedProtocolFeesSf: bigint;
    pendingReferrerFeesSf: bigint;
    accumulatedReferrerFeesSf: bigint;
}
export declare function lookupBorrowRate(curve: Uint8Array, utilization: Fraction): Fraction;
export declare function totalSupplyFraction(state: KlendState, accrued: AccruedKlend): Fraction;
export declare function accrueInterest(state: KlendState, ctx: QuoteContext): AccruedKlend;
export declare function exchangeRatePair(collateralSupply: bigint, totalSupply: Fraction): {
    cs: bigint;
    ts: Fraction;
};
export declare function liquidityToCollateral(liquidityAmount: bigint, collateralSupply: bigint, totalSupply: Fraction): bigint;
export declare function collateralToLiquidityCeil(collateralAmount: bigint, collateralSupply: bigint, totalSupply: Fraction): bigint;
export declare function collateralToLiquidity(collateralAmount: bigint, collateralSupply: bigint, totalSupply: Fraction): bigint;
export declare function fractionCollateralToLiquidity(collateralAmount: bigint, collateralSupply: bigint, totalSupply: Fraction): Fraction;
export declare function fractionLiquidityToCollateralCeil(liquidityAmount: bigint, collateralSupply: bigint, totalSupply: Fraction): bigint;
export declare function fractionFloor(sf: Fraction): bigint;
export declare function fractionFrac(sf: Fraction): Fraction;