code: def cmyk(c, m, y, k):
      
      return Color("cmyk", c, m, y, k)
docs: Create a spectra.Color object in the CMYK color space.
  
      :param float c: c coordinate.
      :param float m: m coordinate.
      :param float y: y coordinate.
      :param float k: k coordinate.
  
      :rtype: Color
      :returns: A spectra.Color object in the CMYK color space.