Method operator()

extlibs/sol3/include/sol/sol.hpp:17292–17295

		}

		int operator()(lua_State* L) {
			auto f = [&](lua_State*) -> int { return this->call(L); };
			return detail::trampoline(L, f);
		}
	};

	template <typename T, typename Function, bool is_yielding>