PFNGLCOPYBUFFERSUBDATAPROCDart typedef
        PFNGLCOPYBUFFERSUBDATAPROCDart =
     void Function(int readTarget, int writeTarget, Pointer<NativeType>  readOffset, Pointer<NativeType>  writeOffset, Pointer<Uint32>  size)
    
    
    
Implementation
typedef PFNGLCOPYBUFFERSUBDATAPROCDart =
    void Function(
      int readTarget,
      int writeTarget,
      Pointer<NativeType> readOffset,
      Pointer<NativeType> writeOffset,
      Pointer<Uint32> size,
    );