code: def test_checksum_band():
      with rasterio.open("tests/data/RGB.byte.tif") as src:
          checksums = [src.checksum(i) for i in src.indexes]
          assert checksums == [25420, 29131, 37860]
  
file_path: rasterio/tests/test_checksum.py
imports: import rasterio
  from rasterio.windows import Window
label_desc: Use image node_id 1 for calling a global function with example usage: test_checksum_band() without return types