Create a `boost::any_collection` with a custom concept

I want to create a boost::any_collection of entities that satisfies a custom concept of mine:

#include <Command>

template<typename T>
concept ModelConcept = [] {

  return requires (T model) {
    { model.setCommand(Command{}) } -> std::same_as<void>;
  };
  }();

I've tried different timew but with no success:

boost::any_collection<ModelConcept> entities;

template <ModelConcept T>
struct ModelConceptWrapper {
  T obj;
};

boost::any_collection<ModelConceptWrapper> entities2;

boost::any_collection<ModelConceptWrapper<>> entities2;

But with no success. I didn't find anything in the documentation that helps me, since it uses the streamable of type_erasure.

How can I create it?

Like the commenter said, you need a Boost Type-Erasure concept. E.g.:

#include <boost/type_erasure/member.hpp>

namespace mylib {
    struct Command {};
    BOOST_TYPE_ERASURE_MEMBER(hasSetCommandConcept, setCommand);
}

using hasSetCommand = mylib::hasSetCommandConcept<void(mylib::Command)>;

Live Demo

Live On Coliru

// #include <Command>
#include <boost/poly_collection/any_collection.hpp>
#include <boost/type_erasure/member.hpp>
#include <iostream>

namespace mylib {
    struct Command {};
    BOOST_TYPE_ERASURE_MEMBER(hasSetCommandConcept, setCommand);
}

using hasSetCommand = mylib::hasSetCommandConcept<void(mylib::Command)>;

struct Model1 {
    void setCommand(mylib::Command) { std::cout << __PRETTY_FUNCTION__ << std::endl; }
};
struct Model2 {
    void setCommand(mylib::Command) { std::cout << __PRETTY_FUNCTION__ << std::endl; }
};

int main() {
    boost::poly_collection::any_collection<hasSetCommand> collection;

    collection.insert(Model1{});
    collection.insert(Model2{});
    collection.insert(Model1{});
    collection.insert(Model1{});

    for (mylib::Command command; auto const& obj : collection)
        obj.setCommand(command);
}

Printing

void Model2::setCommand(mylib::Command)
void Model1::setCommand(mylib::Command)
void Model1::setCommand(mylib::Command)
void Model1::setCommand(mylib::Command)