docs: public ClientCredentials getCredentials() {
          final Pointer<Integer> pid = nref(0);
          final Pointer<Integer> uid = nref(0);
          final Pointer<Integer> gid = nref(0);
  
          WaylandServerCore.INSTANCE()
                           .wl_client_get_credentials(this.pointer,
                                                      pid.address,
                                                      uid.address,
                                                      gid.address);
  
          return new ClientCredentials(pid.get(),
                                       uid.get(),
                                       gid.get());
      }