code: def invert_y_tile(y, z):
      # Convert from TMS to Google tile y coordinate, and vice versa
      return (2**z) - 1 - y
  
imports: from __future__ import annotations
  from io import BytesIO
  import math
  import os
  import dask
  import dask.bag
  import numpy
  from PIL.Image import fromarray
label_desc: Use image node_id 8 for calling a global function with example usage: invert_y_tile(y, z) and returns: unknown