/**
 * Clamps the given number between 0 and 1.
 *
 * @param x The number to clamp.
 *
 * @returns The clamped number.
 */
export declare const clamp01: (x: number) => number;
export declare const D_65_XN = 95.0489;
export declare const D_65_YN = 100;
export declare const D_65_ZN = 108.884;
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