/**
 * NOTE: this operation has O(n) complexity, where n is the number of keys in the curve.
 * @param {AnimationCurve} curve
 * @param {number} ref_time
 * @param {number} ref_value
 * @returns {number} time of the nearest point on the curve
 * @see AnimationCurve
 * @example
 *      const nearest_time = animation_curve_nearest_point(curve, 0.5, 10);
 *      const nearest_value = curve.evaluate(nearest_time);
 */
export function animation_curve_nearest_point(curve: AnimationCurve, ref_time: number, ref_value: number): number;
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