PFNGLDRAWCOMMANDSNVPROCDart typedef
        PFNGLDRAWCOMMANDSNVPROCDart =
     void Function(int primitiveMode, int buffer, Pointer<Pointer<NativeType> >  indirects, Pointer<Uint32>  sizes, int count)
    
    
    
Implementation
typedef PFNGLDRAWCOMMANDSNVPROCDart =
    void Function(
      int primitiveMode,
      int buffer,
      Pointer<Pointer<NativeType>> indirects,
      Pointer<Uint32> sizes,
      int count,
    );