I create a class and add a template parameter "T" to this class. Now I add a method to this class named "operation" and return the template parameter "T", which is selectable.
The result should look like this.

Code: Select all

                 |---|
|----------------| T |
|    BaseClass   |---|
|------------------|
|------------------|
| + operation(): T |
|------------------|

But it looks like the method returns void.

Code: Select all

              |---|
|-------------| T |
|   BaseClass |---|
|---------------|
|---------------|
| + operation() |
|---------------|