What I would like to do would be solved in other l...

# getting-started

[polypus74]

What I would like to do would be solved in other languages via union types (julia, ceylon), traits (haskell, rust), or for example swift's extension functionality. I would like to "union up" preexisting classes that I don't own with classes i do own.

Set_of_types_in_function_parameter.kt