public Either <RfcErrorInfo, string> GetFunctionName(IFunctionDescriptionHandle descriptionHandle)
{
Logger.IfSome(l => l.LogTrace("reading function name by description handle", descriptionHandle));
var rc = NativeApi.GetFunctionName(descriptionHandle as FunctionDescriptionHandle, out var result, out var errorInfo);
return(ResultOrError(result, rc, errorInfo));
}