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diff --git a/lib/sol2/include/sol/variadic_results.hpp b/lib/sol2/include/sol/variadic_results.hpp
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+// sol3 
+
+// The MIT License (MIT)
+
+// Copyright (c) 2013-2019 Rapptz, ThePhD and contributors
+
+// Permission is hereby granted, free of charge, to any person obtaining a copy of
+// this software and associated documentation files (the "Software"), to deal in
+// the Software without restriction, including without limitation the rights to
+// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+// the Software, and to permit persons to whom the Software is furnished to do so,
+// subject to the following conditions:
+
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+#ifndef SOL_VARIADIC_RESULTS_HPP
+#define SOL_VARIADIC_RESULTS_HPP
+
+#include "stack.hpp"
+#include "object.hpp"
+#include "as_returns.hpp"
+#include "function_result.hpp"
+#include "protected_function_result.hpp"
+
+#include <vector>
+
+namespace sol {
+
+	template <typename Al = typename std::allocator<object>>
+	struct basic_variadic_results : public std::vector<object, Al> {
+	private:
+		using base_t = std::vector<object, Al>;
+
+	public:
+		basic_variadic_results() : base_t() {}
+
+		basic_variadic_results(unsafe_function_result fr) : base_t() {
+			this->reserve(fr.return_count());
+			this->insert(this->cend(), fr.begin(), fr.end());
+		}
+
+		basic_variadic_results(protected_function_result fr) : base_t() {
+			this->reserve(fr.return_count());
+			this->insert(this->cend(), fr.begin(), fr.end());
+		}
+
+		template <typename Arg0, typename... Args,
+		     meta::disable_any<std::is_same<meta::unqualified_t<Arg0>, basic_variadic_results>, std::is_same<meta::unqualified_t<Arg0>, function_result>,
+		          std::is_same<meta::unqualified_t<Arg0>, protected_function_result>> = meta::enabler>
+		basic_variadic_results(Arg0&& arg0, Args&&... args) : base_t(std::forward<Arg0>(arg0), std::forward<Args>(args)...) {
+		}
+
+		basic_variadic_results(const basic_variadic_results&) = default;
+		basic_variadic_results(basic_variadic_results&&) = default;
+	};
+
+	struct variadic_results : public basic_variadic_results<> {
+	private:
+		using base_t = basic_variadic_results<>;
+
+	public:
+		using base_t::base_t;
+	};
+
+	template <typename Al>
+	struct is_container<basic_variadic_results<Al>> : std::false_type {};
+
+	template <>
+	struct is_container<variadic_results> : std::false_type {};
+
+	namespace stack {
+		template <typename Al>
+		struct unqualified_pusher<basic_variadic_results<Al>> {
+			int push(lua_State* L, const basic_variadic_results<Al>& e) {
+				int p = 0;
+				for (const auto& i : e) {
+					p += stack::push(L, i);
+				}
+				return p;
+			}
+		};
+
+		template <>
+		struct unqualified_pusher<variadic_results> {
+			int push(lua_State* L, const variadic_results& r) {
+				using base_t = basic_variadic_results<>;
+				return stack::push(L, static_cast<const base_t&>(r));
+			}
+		};
+	} // namespace stack
+
+} // namespace sol
+
+#endif // SOL_VARIADIC_RESULTS_HPP