@Override
    public DataTableType dataTableType() {
        return dataTableType;
    }
@Test
    void can_define_data_table_converter_with_empty_pattern() throws NoSuchMethodException {
        Method method = JavaDataTableTypeDefinitionTest.class.getMethod("convert_data_table_to_string",
            DataTable.class);
        JavaDataTableTypeDefinition definition = new JavaDataTableTypeDefinition(method, lookup,
            new String[] { "[empty]" });
        assertThat(definition.dataTableType().transform(emptyTable.cells()),
            is("convert_data_table_to_string=[[a, ], [, d]]"));
    }