tree 3cc75f40b49b12482156a25b52e24be214e1ce97
parent 04b67addd0a5c2fa0e90217a3df1da23d95901b9
author Kazuho Oku <kazuhooku@gmail.com> 1669609989 +0900
committer Kazuho Oku <kazuhooku@gmail.com> 1669609997 +0900

create helper