code: def grayscale(image):
      """
      Convert the image to grayscale.
  
      :param image: The image to convert.
      :return: An image.
      """
      return image.convert("L")
  
imports: from __future__ import annotations
  import functools
  import operator
  import re
  from .None import ExifTags, Image, ImagePalette
label_desc: Use image node_id 16 for calling a global function with example usage: grayscale(image) and returns: image