code: def rgb_to_hsv(self,RGB):
          "linear rgb to hsv"
          gammaRGB = self._gamma_rgb(RGB)
          return self._ABC_to_DEF_by_fn(gammaRGB,rgb_to_hsvf rgb_to_hsv(self,RGB):
          "linear rgb to hsv"
          gammaRGB = self._gamma_rgb(RGB)
          return self._ABC_to_DEF_by_fn(gammaRGB,rgb_to_hsv)
docs: linear rgb to hsv