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diff --git a/deps/sol2/include/sol/stack_proxy.hpp b/deps/sol2/include/sol/stack_proxy.hpp
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+++ b/deps/sol2/include/sol/stack_proxy.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_STACK_PROXY_HPP
+#define SOL_STACK_PROXY_HPP
+
+#include "stack_proxy_base.hpp"
+
+namespace sol {
+	struct stack_proxy : public stack_proxy_base {
+	public:
+		stack_proxy()
+		: stack_proxy_base() {
+		}
+		stack_proxy(lua_State* L, int index)
+		: stack_proxy_base(L, index) {
+		}
+
+		template <typename... Ret, typename... Args>
+		decltype(auto) call(Args&&... args);
+
+		template <typename... Args>
+		decltype(auto) operator()(Args&&... args) {
+			return call<>(std::forward<Args>(args)...);
+		}
+	};
+
+	namespace stack {
+		template <>
+		struct unqualified_getter<stack_proxy> {
+			static stack_proxy get(lua_State* L, int index = -1) {
+				return stack_proxy(L, index);
+			}
+		};
+
+		template <>
+		struct unqualified_pusher<stack_proxy> {
+			static int push(lua_State*, const stack_proxy& ref) {
+				return ref.push();
+			}
+		};
+	} // namespace stack
+} // namespace sol
+
+#endif // SOL_STACK_PROXY_HPP