Provides support for C++/CLI language features. Commonly Used Types: System.Runtime.CompilerServices.CallConvCdecl System.Runtime.CompilerServices.CallConvStdcall System.Runtime.CompilerServices.CallConvThiscall System.Runtime.CompilerServices.IsLong System.Runtime.CompilerServices.IsSignUnspecifiedByte System.Runtime.CompilerServices.IsImplicitlyDereferenced System.Runtime.CompilerServices.IsBoxed System.Runtime.CompilerServices.NativeCppClassAttribute System.Runtime.CompilerServices.IsUdtReturn System.Runtime.CompilerServices.CallConvFastcall When using NuGet 3.x this package requires at least version 3.4.