"Opaque types in Scala allow you to create type aliases that remain hidden behind their wrappers, ensuring type safety without adding any runtime overhead."
"This means the underlying type is known inside the scope where the opaque type is defined, but from outside that scope, the opaque type is treated as a distinct type."
"By exposing only controlled extension methods for the opaque type, you provide a restricted interface that maintains full control over how the type is used."
"Developers can wrap common primitive types like Int or String inside opaque types, ensuring different concepts are never accidentally interchanged."
Collection
[
|
...
]