PFNGLTEXTURESTORAGE2DPROCDart typedef
        PFNGLTEXTURESTORAGE2DPROCDart =
     void Function(int texture, int levels, int internalformat, int width, int height)
    
    
    
Implementation
typedef PFNGLTEXTURESTORAGE2DPROCDart =
    void Function(
      int texture,
      int levels,
      int internalformat,
      int width,
      int height,
    );