export declare function aprToTick(apr: number, tickStep: bigint | number): bigint;
export declare function tickToApr(tick: bigint | number, tickStep: bigint | number): number;
export declare function formatApr18(raw: string | bigint | number | null | undefined): {
    apr: number;
    aprPercent: string;
} | undefined;
export declare function enrichApr(tick: bigint | number | undefined, tickStep: bigint | number): {
    tick: undefined;
    apr: undefined;
    aprPercent?: undefined;
} | {
    tick: number;
    apr: number;
    aprPercent: string;
};
export declare function enrichAprValue(value: number | undefined | null): {
    aprPercent: string;
} | undefined;
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