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A comment on Tell HN: Merry Christmas. Parent comment

Re:Tell HN: Merry Christmas by Hobadee on Wednesday December 24, 2025 @09:43PM (#46381597)
So Tree is an interface then, not a class?
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Re:Tell HN: Merry Christmas by devsda on Thursday December 25, 2025 @01:44AM (#46382632)
I'm pretty sure its called a Trait these days.
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