fmi2GetRealOutputDerivatives implementation in Co-Simulation

[threewaterM]

Hi, thank you for your excellent work on fmi4cpp!
I’m currently studying the Co-Simulation implementation and noticed that fmi2GetRealOutputDerivatives seems not to be implemented in the current version.I noticed that it is implemented in cs_library, but cs_slave does not expose it.
Could you please let me know if this function was intentionally excluded (for example, rarely used in CS models), or if it’s planned to be supported in the future?