interface InBallpark {
    /**
     * check if a number is in ballpark of another number. See also roundTo
     * @param actual
     * @param expected
     * @param [allowedDifferenceMultiplier=0.1] - a number between 0 and 1 (exclusive). 0.1 (default) means 10% difference is allowed.
     * @example inBallpark(1, 1.1);
     * @example inBallpark(1, 1.1, 0.1);
     */
    (actual: number, expected: number, allowedDifferenceMultiplier?: number): void;
}
export declare const inBallpark: InBallpark, notInBallpark: InBallpark;
export {};
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