/**
 * ---
 * category: utilities/utils
 * ---
 * Determines if one numerical value (a) is within a designated range (diff) of another (b)
 *
 * @module within
 *
 * @param {number} a
 * @param {number} b
 * @param {number} [diff=1]
 * @returns {Boolean} Returns true if a is within the diff range of b
 */
declare function within(a: number, b: number, diff?: number): boolean;
export default within;
export { within };
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