PFNGLVERTEXATTRIBLPOINTERPROCDart typedef
        PFNGLVERTEXATTRIBLPOINTERPROCDart =
     void Function(int index, int size, int type, int stride, Pointer<NativeType>  pointer)
    
    
    
Implementation
typedef PFNGLVERTEXATTRIBLPOINTERPROCDart =
    void Function(
      int index,
      int size,
      int type,
      int stride,
      Pointer<NativeType> pointer,
    );