PFNGLDEBUGMESSAGECALLBACKAMDPROCDart typedef
        PFNGLDEBUGMESSAGECALLBACKAMDPROCDart =
     void Function(Pointer<NativeFunction<GLDEBUGPROCAMD> >  callback, Pointer<NativeType>  userParam)
    
    
    
Implementation
typedef PFNGLDEBUGMESSAGECALLBACKAMDPROCDart =
    void Function(
      Pointer<NativeFunction<GLDEBUGPROCAMD>> callback,
      Pointer<NativeType> userParam,
    );