public Object transform(List<List<String>> raw) {
        try {
            return transformer.transform(raw);
        } catch (Throwable throwable) {
            throw new CucumberDataTableException(
                String.format("'%s' could not transform%n%s", toCanonical(), DataTable.create(raw)), throwable);
        }
    }
@Test
    void shouldTransformATableCell() {
        assertThat(singleCellType.transform(singletonList(singletonList("12"))),
            equalTo(singletonList(singletonList(12))));
    }