/** Returns rate as a FixedX18 raw bigint (18 decimals). Positive for tick >= 0, negative for tick < 0. */
export declare function getRateAtTickRaw(tickIndex: bigint, tickStep: bigint): bigint;
/** Returns rate as a JS number (e.g. 0.05 for 5%). */
export declare function getRateAtTick(tickIndex: bigint | number, tickStep: bigint | number): number;
/** Estimates the tick for a given rate (JS number, e.g. 0.05 for 5%). */
export declare function estimateTickForRate(rate: number, tickStep: bigint | number, roundDown: boolean): bigint;
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