`var FFrame` is mapped to `FFrame&` in C++ (but it's a pointer with the C backend)
- Map complex C++ types into Nim jmgomez
- Map complex C++ types into Nim jmgomez
- Map complex C++ types into Nim veksha
- Map complex C++ types into Nim sls1005
- Map complex C++ types into Nim jmgomez
- Map complex C++ types into Nim sls1005
