PFNGLTRANSFORMFEEDBACKSTREAMATTRIBSNVPROC typedef
        PFNGLTRANSFORMFEEDBACKSTREAMATTRIBSNVPROC =
     Void Function(Uint32 count, Pointer<Int32>  attribs, Uint32 nbuffers, Pointer<Int32>  bufstreams, Uint32 bufferMode)
    
    
    
Implementation
typedef PFNGLTRANSFORMFEEDBACKSTREAMATTRIBSNVPROC =
    Void Function(
      Uint32 count,
      Pointer<Int32> attribs,
      Uint32 nbuffers,
      Pointer<Int32> bufstreams,
      Uint32 bufferMode,
    );