@pytest.mark.skipif((not _IMAGE_TESTING), reason="image libraries aren't installed.")
def test_non_existent_backbone():
    with pytest.raises(KeyError):
        SemanticSegmentation(2, 'i am never going to implement this lol')
@pytest.mark.skipif((not _IMAGE_TESTING), reason="image libraries aren't installed.")
def test_non_existent_backbone():
    with pytest.raises(KeyError):
        SemanticSegmentation(2, 'i am never going to implement this lol')