/**
 * Color-Matching Function in CIE XYZ space.
 *
 * Compute CIE 1931 2° x̄(λ), ȳ(λ), z̄(λ) using Wyman et al. analytic fits.
 *
 * This is the "multi-lobe" fit. The absolute error magnitude is under 0.05 across the spectrum according to the paper.
 *
 * @param {number[]} out length>=3
 * @param {number} wavelength_nm wavelength in nanometers
 * @returns {number[]} out
 */
export function xyz_cmf_wyman(out: number[], wavelength_nm: number): number[];
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