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kotlinlang

<https://discuss.kotlinlang.org/t/data-class-composition-without-inheritance/26618|Data Class Composition without Inheritance>
Data class “inheritance” is one of the most sought-after features of Kotlin. Just take a look at the amount of discussion and upvotes across these sites:

<https://stackoverflow.com/search?q=data+class+inheritance|Stack Overflow> (Especially <https://stackoverflow.com/questions/26444145/extend-data-class-in-kotlin|this question>)
&lt;a href="<https://stackoverflow.com/questions/26444145/extend-data-class-in-kotlin>"...