```
HPX_REGISTER_CHANNEL(int)

void do_something(hpx::lcos::channel<int> c) {
    int n = c.get(hpx::launch::sync); // block here

    std::cout << "Recived number: " << n << std::endl;
}


int hpx_main() {

    hpx::lcos::channel<int> c(hpx::find_here());
    hpx::apply(&do_something, c);
    //c.set(12);

    return hpx::finalize();
}

int main() {
    return hpx::init();
}
```