vlib/v/checker/tests/check_err_msg_with_generics.vv:15:10: error: cannot cast struct `BSTree[Result[[]Token, Err[string]]]` to `int`
   13 | fn test_err_msg() {
   14 |     typ := datatypes.BSTree[Result[[]Token, Err[string]]]{}
   15 |     println(int(typ))
      |             ~~~~~~~~
   16 | }
