| B.foo "hello" : String × String | |
| [Meta.synthInstance] ❌️ Add String | |
| [Meta.synthInstance] no instances for Add String | |
| [Meta.synthInstance.instances] #[] | |
| [Meta.synthInstance] result <not-available> | |
| [Meta.synthInstance] ❌️ Add Bool | |
| [Meta.synthInstance] no instances for Add Bool | |
| [Meta.synthInstance.instances] #[] | |
| [Meta.synthInstance] result <not-available> |