PFNGLMULTIDRAWARRAYSPROCDart typedef
        PFNGLMULTIDRAWARRAYSPROCDart =
     void Function(int mode, Pointer<Int32>  first, Pointer<Uint32>  count, int drawcount)
    
    
    
Implementation
typedef PFNGLMULTIDRAWARRAYSPROCDart =
    void Function(
      int mode,
      Pointer<Int32> first,
      Pointer<Uint32> count,
      int drawcount,
    );