Has型クラスパターン
https://qiita.com/sparklingbaby/items/b6c0e87c0299286e5e17
NamedFieldPuns
DuplicateRecordFields
generic-lens
https://hackernoon.com/the-has-type-class-pattern-ca12adab70ae
https://www.reddit.com/r/haskell/comments/6jy8yu/the_has_type_class_pattern/
https://stackoverflow.com/questions/57310715/what-can-you-do-that-is-useful-with-haskell-type-classes
Has型クラス
と関係ある
#??
https://qiita.com/sparklingbaby/items/b6c0e87c0299286e5e17#data-has