import { type Hex } from "viem";
export declare enum InterestRateModelType {
    UNKNOWN = 0,
    KINK = 1,
    ADAPTIVE_CURVE = 2,
    KINKY = 3,
    FIXED_CYCLICAL_BINARY = 4,
    FIXED_CYCLICAL_BINARY_MONTHLY = 5
}
export interface KinkIRMInfo {
    baseRate: bigint;
    slope1: bigint;
    slope2: bigint;
    kink: bigint;
}
export interface LinearKinkIRMParams {
    kinkPct: number;
    baseBorrowAPY: number;
    kinkBorrowAPY: number;
    maxBorrowAPY: number;
    baseSupplyAPY: number;
    kinkSupplyAPY: number;
    maxSupplyAPY: number;
}
export interface AdaptiveCurveIRMInfo {
    targetUtilization: bigint;
    initialRateAtTarget: bigint;
    minRateAtTarget: bigint;
    maxRateAtTarget: bigint;
    curveSteepness: bigint;
    adjustmentSpeed: bigint;
}
export interface KinkyIRMInfo {
    baseRate: bigint;
    slope: bigint;
    shape: bigint;
    kink: bigint;
    cutoff: bigint;
}
export interface FixedCyclicalBinaryIRMInfo {
    primaryRate: bigint;
    secondaryRate: bigint;
    primaryDuration: bigint;
    secondaryDuration: bigint;
    startTimestamp: bigint;
}
export interface FixedCyclicalBinaryMonthlyIRMInfo {
    primaryRate: bigint;
    secondaryRate: bigint;
    cycleStartDay: bigint;
    secondaryDays: bigint;
}
export type IRMParams = KinkIRMInfo | AdaptiveCurveIRMInfo | KinkyIRMInfo | FixedCyclicalBinaryIRMInfo | FixedCyclicalBinaryMonthlyIRMInfo;
export declare const ADAPTIVE_RATE_AT_TARGET_TO_BORROW_SPY_SCALE: bigint;
export declare function adaptiveRateAtTargetToBorrowSPY(wadPerSecond: bigint): bigint | null;
/**
 * Decodes IRM parameters from the encoded bytes returned by IRMLens.getInterestRateModelInfo
 * @param type The interest rate model type
 * @param params The encoded parameters as a hex string
 * @returns The decoded IRM parameters matching the specified type
 * @throws Error if the type is UNKNOWN or invalid
 */
export declare function decodeIRMParams(type: InterestRateModelType, params: Hex): IRMParams;
export declare function normalizeIRMParams(type: InterestRateModelType, data: unknown): IRMParams | null;
export declare function decorateIRMParams(type: InterestRateModelType.KINK, data: KinkIRMInfo | null, interestFee: number): LinearKinkIRMParams | null;
export declare function decorateIRMParams(type: InterestRateModelType.ADAPTIVE_CURVE, data: AdaptiveCurveIRMInfo | null, interestFee: number): null;
export declare function decorateIRMParams(type: InterestRateModelType.KINKY, data: KinkyIRMInfo | null, interestFee: number): null;
export declare function decorateIRMParams(type: InterestRateModelType.FIXED_CYCLICAL_BINARY, data: FixedCyclicalBinaryIRMInfo | null, interestFee: number): null;
export declare function decorateIRMParams(type: InterestRateModelType.FIXED_CYCLICAL_BINARY_MONTHLY, data: FixedCyclicalBinaryMonthlyIRMInfo | null, interestFee: number): null;
export declare function decorateIRMParams(type: InterestRateModelType, data: IRMParams | null, interestFee: number): LinearKinkIRMParams | null;
//# sourceMappingURL=irm.d.ts.map