stringify: Add optional attributes list to be displayed

Currently, propery type attributes are ignored in the str and json
representations.
If we want to include them, it is required to override to_jsondict()
and from_jsondict() methods.

This patch adds the optional attributes list to specify the addtional
attributes included in the str and json representations.

Signed-off-by: IWASE Yusuke <iwase.yusuke0@gmail.com>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>

0 files changed, 0 insertions, 0 deletions