[ERROR] Main.hx:8: characters 9-18

 8 |         C.f("hi");
   |         ^^^^^^^^^
   | Could not find a suitable overload, reasons follow

      | Overload resolution failed for () -> Void

       8 |         C.f("hi");
         |             ^^^^
         | Too many arguments

      | Overload resolution failed for (t : f.T) -> Void

       8 |         C.f("hi");
         |             ^^^^
         | Constraint check failure for f.T
         | String should be Int
         | For function argument 't'