How to use the conan.cli.collect_images function in conan

def test_collect_images_many(self):
        test_dir = self.extract_test_tar('docker/v10_format/merge.tgz')
        base = os.path.dirname(test_dir).strip('\\/')
        result = collect_images(test_dir)
        result = [f.replace(base, '').lstrip('\\/') for f in result]
        expected = ['merge.tgz/merge/busybox', 'merge.tgz/merge/busybox2']
        assert sorted(expected) == sorted(result)

def test_collect_images_single(self):
        test_dir = self.extract_test_tar('docker/v10_format/busybox2.tgz')
        result = collect_images(test_dir)
        assert len(result) == 1

def test_collect_images(self):
        test_dir = self.extract_test_tar('docker/v10_format/images.tgz')
        result = collect_images(test_dir)
        assert len(result) == 3