import type { RoundingMode } from './fraction';
/**
 * Converts a fraction represented by `numerator` and `denominator` to a exponential string representation.
 * @param numerator - The numerator of the fraction.
 * @param denominator - The denominator of the fraction.
 * @param decimalPlaces - The number of decimal places in the resulting string.
 * @param roundingMode - The rounding mode to be applied.
 * @returns The string representation of the fraction with the specified number of significant digits.
 */
export declare const toExponential: ({ numerator, denominator, decimalPlaces, roundingMode, trailingZeros, }: {
    numerator: bigint;
    denominator: bigint;
    decimalPlaces: number;
    roundingMode: RoundingMode;
    trailingZeros: boolean;
}) => string;
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