// POD struct
struct foo {std::vector<int> a;int b;
};// announce requires foo to have the equal operator implemented
bool operator==(const foo& lhs, const foo& rhs) {return lhs.a == rhs.a && lhs.b == rhs.b;
}// a pair of two ints
using foo_pair = std::pair<int, int>;// another pair of two ints
using foo_pair2 = std::pair<int, int>;// a struct with member vector<vector<...>>
struct foo2 {int a;vector<vector<double>> b;
};bool operator==(const foo2& lhs, const foo2& rhs) {return lhs.a == rhs.a && lhs.b == rhs.b;
}// receives `remaining` messages
void testee(event_based_actor* self, size_t remaining) {auto set_next_behavior = [=] {if (remaining > 1) testee(self, remaining - 1);else self->quit();};self->become (// note: we sent a foo_pair2, but match on foo_pair// that's safe because both are aliases for std::pair<int, int>[=](const foo_pair& val) {cout << "foo_pair("<< val.first << ", "<< val.second << ")"<< endl;set_next_behavior();},[=](const foo& val) {cout << "foo({";auto i = val.a.begin();auto end = val.a.end();if (i != end) {cout << *i;while (++i != end) {cout << ", " << *i;}}cout << "}, " << val.b << ")" << endl;set_next_behavior();});
}int main(int, char**) {// announces foo to the libcaf type system;// the function expects member pointers to all elements of fooannounce<foo>("foo", &foo::a, &foo::b);// announce foo2 to the libcaf type system,// note that recursive containers are managed automatically by libcafannounce<foo2>("foo2", &foo2::a, &foo2::b);// serialization can throw if types are not announced properlytry {// init some test data
    foo2 vd;vd.a = 5;vd.b.resize(1);vd.b.back().push_back(42);// serialize test datavector<char> buf;binary_serializer bs(std::back_inserter(buf));bs << vd;// deserialize written test data from buffer
    binary_deserializer bd(buf.data(), buf.size());foo2 vd2;uniform_typeid<foo2>()->deserialize(&vd2, &bd);// deserialized data must be equal to original inputassert(vd == vd2);// announce std::pair<int, int> to the type systemannounce<foo_pair>("foo_pair", &foo_pair::first, &foo_pair::second);// libcaf returns the same uniform_type_info// instance for the type aliases foo_pair and foo_pair2assert(uniform_typeid<foo_pair>() == uniform_typeid<foo_pair2>());}catch (std::exception& e) {cerr << "error during type (de)serialization: " << e.what() << endl;return -1;}// spawn a testee that receives two messages of user-defined typeauto t = spawn(testee, size_t{2});{ // lifetime scope of self
    scoped_actor self;// send t a fooself->send(t, foo{std::vector<int>{1, 2, 3, 4}, 5});// send t a foo_pair2self->send(t, foo_pair2{3, 4});}await_all_actors_done();shutdown();
}

#include <vector>
#include <iostream>
#include "caf/all.hpp"
#include "caf/io/all.hpp"
using std::cout;
using std::endl;
using std::vector;
using std::map;
using std::pair;
using namespace caf;struct foo {std::vector<vector<map<int,pair<int,int>>>> a;int b;
};
bool operator==(const foo& lhs, const foo& rhs) {return lhs.a == rhs.a && lhs.b == rhs.b;
}
// receives `remaining` messages
void testee(event_based_actor* self) {self->become ([=](const foo& val) {aout(self)<<"get it"<<endl;});
}
int main(int, char**) {
//  announce<foo2>("foo2", &foo2::a, &foo2::b);announce<foo>("foo", &foo::a, &foo::b);auto actor = spawn(testee);caf::io::publish(actor,10000);{ // lifetime scope of self
    scoped_actor self;auto remoter = caf::io::remote_actor("localhost", 10000);self->send(remoter, foo{std::vector<vector<map<int,pair<int,int>>>>{},1,});}await_all_actors_done();shutdown();
}