import { BigNumber } from 'ethers';
/**
 *  @notice Calculates the price for a given Fenwick index
 *  @dev    Throws if index exceeds maximum constant
 *  @dev    Fenwick index is converted to bucket index
 *  @dev    Fenwick index to bucket index conversion
 *          1.00      : bucket index 0,     fenwick index 4146: 7388-4156-3232=0
 *          MAX_PRICE : bucket index 4156,  fenwick index 0:    7388-0-3232=4156.
 *          MIN_PRICE : bucket index -3232, fenwick index 7388: 7388-7388-3232=-3232.
 *  @dev    V3 (final): x^y = 2^(y*log_2(x))
 */
export declare const indexToPrice: (index: number) => BigNumber;
/**
 *  @notice Calculates the Fenwick index for a given price
 *  @param price bucket price, in WAD scale (1e18)
 *  @dev    Throws if price exceeds maximum constant
 *  @dev    Price expected to be inputted as a 18 decimal WAD
 *  @dev    V3 (final): bucket index =  log_2(price) / log_2(FLOAT_STEP)
 *  @dev    Fenwick index = 7388 - bucket index + 3232
 */
export declare const priceToIndex: (price: BigNumber) => number;