code: def rgb_to_hsl(r, g, b):
      """Converts a color given by its RGB coordinates to HSL coordinates
      (hue, saturation, lightness).
  
      Each of the RGB coordinates must be in the range [0, 1].
      """
      return rgba_to_hsla(r, g, b)[:3]
  
imports: from abc import ABCMeta, abstractmethod
  from math import ceil
label_desc: Use image node_id 12 for calling a global function with example usage: rgb_to_hsl(r, g, b) and returns: rgba_to_hsla