@Override
    public DataTableType dataTableType() {
        return dataTableType;
    }
@Test
    void can_define_table_entry_transformer() throws NoSuchMethodException {
        Method method = JavaDataTableTypeDefinitionTest.class.getMethod("converts_table_entry_to_string", Map.class);
        JavaDataTableTypeDefinition definition = new JavaDataTableTypeDefinition(method, lookup, new String[0]);
        assertThat(definition.dataTableType().transform(dataTable.cells()),
            is(singletonList("converts_table_entry_to_string={a=c, b=d}")));
    }