code: def test_data_window_masked_file():
      with rasterio.open("tests/data/RGB.byte.tif") as src:
          window = windows.get_data_window(src.read(1, masked=True))
          assert window == windows.Window.from_slices(
              (3, 714), (13, 770)
          )
  
          window = windows.get_data_window(src.read(masked=True))
          assert window == windows.Window.from_slices(
              (3, 714), (13, 770)
          )
  
imports: import numpy
  import pytest
  import rasterio
  from rasterio.errors import WindowError
  from rasterio import windows
label_desc: Use image node_id 15 for calling a global function with example usage: test_data_window_masked_file() without return types