def METHOD_NAME():
    """Confirm resolution of issue #1471"""
    with rasterio.open("tests/data/red.tif") as src:
        filled = src.read(1, boundless=True, fill_value=5, window=Window(-1, -1, 66, 66))
    assert (filled[:, 0] == 5).all()
    assert (filled[:, -1] == 5).all()
    assert (filled[0, :] == 5).all()
    assert (filled[-1, :] == 5).all()