code: def test_blacklisted_keys(tmpdir):
      # Some keys were removed from .meta when they were found to clash with
      # creation options.
      # https://github.com/rasterio/rasterio/issues/402
      with rasterio.open("tests/data/RGB.byte.tif") as src:
          kwds = src.meta
      with rasterio.open(
          str(tmpdir.join("test_copy_meta.tif")), "w", **kwds
      ) as dst:
          keys = map(lambda x: x.lower(), dst.meta.keys())
          assert "blockxsize" not in keys
          assert "blockysize" not in keys
          assert "tiled" not in keys
  
label_desc: Use image node_id 2 for calling a global function with example usage: test_blacklisted_keys(tmpdir) without return types