var image/color.NRGBA64Model

3 uses

	image/color (current package)
		color.go#L169: 	NRGBA64Model Model = ModelFunc(nrgba64Model)

	image
		image.go#L476: func (p *NRGBA64) ColorModel() color.Model { return color.NRGBA64Model }
		image.go#L514: 	c1 := color.NRGBA64Model.Convert(c).(color.NRGBA64)