#include <iostream>
#include <string>
#include <functional>

class Printer
{
public:
	typedef std::function<void(void)> PrintHandle; /*Symbol 'function' could not be resolved*/
	void setEventHandler(PrintHandle event);
	void triggerEvent();
	const Printer& operator=(const Printer&)=delete;
	Printer(const Printer&)=delete;
	Printer()=default;
private:
	PrintHandle handle;
};

void Printer::setEventHandler(Printer::PrintHandle event)
{
	handle = event;
}

void Printer::triggerEvent()
{
	handle();
}

using namespace std;

int main() {
	Printer printer;
	std::string hello{"Hello World"};
	printer.setEventHandler([=](){std::cout<<hello<<std::endl;}); /*Invalid Arguments 'Candidates are void setEventHandler(?) '*/
	printer.triggerEvent();
	return 0;
}

auto foo() -> void;

template<typename _Signature>
    class function;