code: def duplicate(image):
      """Copy a channel. Alias for :py:meth:`PIL.Image.Image.copy`.
  
      :rtype: :py:class:`~PIL.Image.Image`
      """
  
      return image.copy()
  
imports: from .None import Image
label_desc: Use image node_id 2 for calling a global function with example usage: duplicate(image) and returns: image